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IL-2&#44; IL-6&#44; tumor necrosis factor &#40;TNF&#41;-&#945;&#44; and others&#46; This is known as the &#8220;cytokine storm&#46;&#8221;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;4</span></a> This leads to a massive release of free radicals&#44; with the development of oxidative stress and a decrease in levels of glutathione&#44; which plays an important role in tissue damage&#46;<a class="elsevierStyleCrossRefs" href="#bib0025"><span class="elsevierStyleSup">5&#44;6</span></a> Therefore&#44; substances with an antioxidant effect have been proposed as treatment options&#44; including ascorbic acid&#44; zinc&#44; vitamin D&#44; and N-acetylcysteine &#40;NAC&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0035"><span class="elsevierStyleSup">7&#8211;9</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">NAC is a precursor of glutathione derived from <span class="elsevierStyleSmallCaps">l</span>-cysteine and has antioxidant action&#46; There is extensive experience in its use in other diseases such as chronic obstructive pulmonary disease&#46; It has been suggested for use in COVID-19 thanks to its multiple effects&#46; Its mucolytic action is due to its capacity to break the disulfide bridges of the glycoprotein matrix&#46; Its antioxidant effect is thanks to its capacity to replenish thiol and glutathione levels and to neutralize free radicals&#46;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> Lastly&#44; its anti-inflammatory action is due to its ability to inhibit cytokines such as IL-6 and promote lymphocyte proliferation &#40;which is inversely affected by oxidative stress and low levels of glutathione&#46;<a class="elsevierStyleCrossRefs" href="#bib0055"><span class="elsevierStyleSup">11&#44;12</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">Spain was one of the countries most affected by the pandemic in the first wave &#40;from January 31 to June 21&#44; 2020&#41;&#46; The worst months were March and April&#44; which was also true in our center&#46;<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> Given the lack of a specific treatment for COVID-19&#44; one of the adjuvant treatments proposed was NAC at a dose of 1200<span class="elsevierStyleHsp" style=""></span>mg&#47;day orally&#46; This study aims to verify if the use of NAC had a positive impact on the progress of hospitalized patients and on reducing mortality due to COVID-19&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Patients and methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Design</span><p id="par0025" class="elsevierStylePara elsevierViewall">This work is an observational&#44; retrospective cohort study&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Patients</span><p id="par0030" class="elsevierStylePara elsevierViewall">Adult patients admitted to the La Mancha Centro General Hospital due to COVID-19 confirmed by means of a PCR test of nasopharyngeal exudate between March 9 and April 30&#44; 2020 were included&#46; Patients were excluded if they received treatment regimens with a low number of patients &#40;&#60;10&#41;&#59; this included restricted-use drugs such as IL-1 inhibitors &#40;anakinra&#41; or IL-6 &#40;tocilizumab&#41;&#44; lopinavir&#47;ritonavir&#44; emtricitabine&#47;tenofovir&#44; and apheresis&#46; Patients were also excluded if they were treated with dexamethasone &#40;its use began at the end of April&#41; and&#47;or calcifediol&#44; due to their low numbers&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Procedure&#47;data collection</span><p id="par0035" class="elsevierStylePara elsevierViewall">Patients were treated according to protocol in force at the center&#46; There were various treatment regimens&#58; hydroxychloroquine<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>azithromycin<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>low-molecular-weight heparin<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>glucocorticoids<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>NAC&#46; The choice of NAC as a treatment was at the attending physician&#39;s discretion in accordance with his&#47;her clinical judgment&#46; The NAC dose used was 1200<span class="elsevierStyleHsp" style=""></span>mg&#47;day orally divided into two 600-mg doses&#46; The main variables &#40;including treatment received and mortality&#41; were gathered from the electronic medical record and electronic records from the Radiology&#44; Pharmacy&#44; and Laboratory Departments&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">The Radiographic Assessment of Lung Edema &#40;RALE&#41; scale was used to measure the degree of lung involvement on the chest x-ray&#58; 0 points &#40;normal&#41;&#44; 1&#8211;2 &#40;mild involvement&#41;&#44; 3&#8211;6 &#40;moderate involvement&#41;&#44; and 7&#8211;8 &#40;severe involvement&#41;&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Statistical analysis</span><p id="par0045" class="elsevierStylePara elsevierViewall">A descriptive analysis was performed on all the variables included in the study&#46; Qualitative variables were described using absolute and relative frequencies whereas quantitative variables were described using mean<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>standard deviation &#40;SD&#41; or median<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>interquartile range &#40;IQR&#41; according to the variable&#8217;s distribution&#46; Statistical methods &#40;Kolmogorov-Smirnov or Shapiro-Wilk test&#41; and graphic methods &#40;histograms&#41; were used to verify the variable&#8217;s normality&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">A bivariate analysis was used to make comparisons between groups &#40;NAC vs no NAC and death vs discharge&#41;&#46; The chi-square test or Fisher&#8217;s exact test was used for qualitative variables and the Student&#39;s <span class="elsevierStyleItalic">t</span>-test or the Mann-Whitney <span class="elsevierStyleItalic">U</span> test was used for quantitative variables according to the variable&#8217;s normality&#46;</p><p id="par0055" class="elsevierStylePara elsevierViewall">Lastly&#44; a multivariate analysis was performed by means of a logistic regression in order to independently identify possible risk factors and protective factors&#46; The odds ratio &#40;OR&#41; and 95&#37; confidence intervals &#40;95&#37;CI&#41; were calculated for the significant variables&#46; To build the final model&#44; significant variables on the multivariate analysis&#44; variables close to statistical significance &#40;<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#46;200&#41;&#44; and adjustment or clinically relevant variables were used&#46; Once the larger model was built&#44; variables that did not reach statistical significance and were not adjustment&#44; effect modifier&#44; or confounding variables were removed&#46; In this same manner&#44; a Cox regression model was created&#44; calculating the hazard ratios &#40;HR&#41; and 95&#37;CI&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">All calculations were performed using the SPSS program version 18&#46; The value of <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#46;05 was defined as statistically significant&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Ethical considerations</span><p id="par0065" class="elsevierStylePara elsevierViewall">The study was conducted in accordance with the ethical principles of the Declaration of Helsinki&#46; Approval was granted from the Drug Research Ethics Committee of the La Mancha Centro General Hospital &#40;ref&#46; 147-C&#41;&#46;</p></span></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Results</span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">General characteristics of patients and comparisons between patients with and without NAC</span><p id="par0070" class="elsevierStylePara elsevierViewall">A total of 378 patients were included&#46; The percentage of men was slightly higher&#59; there were 199 men &#40;52&#46;6&#37;&#41;&#44; the mean age was 73&#46;3<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;5 years&#46; Respiratory symptoms were the most common&#8212;70&#37; reported cough&#44; fever&#44; and&#47;or dyspnea&#8212;followed by asthenia &#40;34&#46;4&#37;&#41;&#46;</p><p id="par0075" class="elsevierStylePara elsevierViewall">Half of patients &#40;52&#46;6&#37;&#41; received treatment with NAC &#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>199&#41;&#46; Comparing their characteristics with those of the group which did not receive NAC&#44; they were observed to be similar and there are no statistically significant differences &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0080" class="elsevierStylePara elsevierViewall">It was observed that patients with or without treatment with NAC were similar in regard to the radiological severity upon admission and maximum oxygen required&#46; The overall mortality rate was 26&#46;7&#37;&#46; There was a trend toward greater mortality in the group which did not receive NAC &#40;31&#46;3&#37; vs 22&#46;6&#37;&#59; <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;057&#41;&#46; There were statistically significant differences among the eight treatment regimens used in both groups &#40;<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#41;&#46; There were no differences in the blood tests performed&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Flow chart of patients included in the study</span><p id="par0085" class="elsevierStylePara elsevierViewall">The in-hospital mortality rate was 26&#46;7&#37;&#46; Patients who died were older than those who were discharged &#40;81&#46;3<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>11&#46;5 vs 70&#46;4<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;5 years&#44; <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#46;001&#41;&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">In regard to the x-ray upon admission&#44; greater mortality was observed among those with greater radiological involvement&#58; the mortality rate was &#60;20&#37; in patients with a normal x-ray or mild involvement&#44; increased to 41&#46;4&#37; in patients with a moderate RALE score&#44; and was 80&#37; in patients with severe involvement&#46; Greater mortality was also observed among those with greater maximum oxygen requirements&#46; The mortality rate was 2&#46;6&#37; in patients who did not require oxygen&#44; 17&#46;1&#37; in patients with nasal cannula&#44; 50&#37; in patients with a Venturi mask&#44; and 80&#37; in patients with a non-rebreather mask or non-invasive mechanical ventilation&#46;</p><p id="par0095" class="elsevierStylePara elsevierViewall">The median survival time was 28 &#40;19&#46;5&#8211;36&#46;5&#41; days &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>A&#41;&#46; Comparing the various age groups&#44; it was observed that the median survival decreased significantly among those who were older &#40;<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#46;001&#41;&#58; it was 13 &#40;8&#46;8&#8211;17&#46;2&#41; days in patients older than 80 years &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>B&#41;&#46; In addition&#44; it was observed that the median survival time was significantly greater in patients treated with NAC &#40;<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#46;013&#41;&#44; who had 30 &#40;17&#46;2&#8211;42&#46;8&#41; days of survival&#44; compared to patients who did not receive it&#44; who had 23 &#40;8&#46;4&#8211;37&#46;6&#41; days &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>C&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Risk factors and protective factors of mortality identified</span><p id="par0100" class="elsevierStylePara elsevierViewall">Lastly&#44; the multivariate logistic regression analysis adjusted for the different treatment regimens identified the following risk factors of mortality&#58; the patient&#8217;s age &#40;patients older than 80 years&#58; OR&#58; 8&#46;4 &#40;95&#37;CI&#58; 3&#8211;23&#46;4&#41;&#41;&#44; moderate or severe x-ray involvement measured by the RALE scale &#40;OR&#58; 7&#46;3 &#40;95&#37;CI&#58; 3&#46;2&#8211;16&#46;9&#41;&#41;&#44; tobacco use &#40;OR&#58; 2&#46;8 &#40;95&#37;CI&#58; 1&#46;3&#8211;6&#46;1&#41;&#41;&#44; and previous arrhythmia &#40;OR&#58; 2&#46;8 &#40;95&#37;CI&#58; 1&#46;3&#8211;6&#46;2&#41;&#41;&#46;</p><p id="par0105" class="elsevierStylePara elsevierViewall">On the contrary&#44; treatment with NAC was identified as a protective factor &#40;OR&#58; 0&#46;57 &#40;95&#37;CI&#58; 0&#46;31&#8211;0&#46;99&#41;&#41;&#46; Asthma also seemed to be a protective factor to a certain degree&#44; though this finding was not statistically significant &#40;OR&#58; 0&#46;19 &#40;95&#37;CI&#58; 0&#46;03&#8211;1&#46;06&#41;&#41; &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><p id="par0110" class="elsevierStylePara elsevierViewall">Similar results were found in the Cox regression analysis&#46;</p></span></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Discussion</span><p id="par0115" class="elsevierStylePara elsevierViewall">This study showed that the oral administration of NAC at a dose of 1200<span class="elsevierStyleHsp" style=""></span>mg per day was associated with lower mortality in patients hospitalized due to COVID-19&#46; The risk factors identified by means of logistic regression were age&#44; greater radiological involvement&#44; tobacco use&#44; and presence of prior arrhythmia whereas treatment with NAC was a protective factor&#46; In regard to asthma&#44; the use of inhaled corticosteroids seemed to confer a certain degree of protection against SARS-CoV-2&#44; as it reduced ACE2 receptor expression in the lungs&#46;<a class="elsevierStyleCrossRefs" href="#bib0070"><span class="elsevierStyleSup">14&#44;15</span></a></p><p id="par0120" class="elsevierStylePara elsevierViewall">As shown in other studies&#44; the use of NAC at high doses &#40;&#8805;1200<span class="elsevierStyleHsp" style=""></span>mg&#47;day&#41; may have beneficial effects due to its antioxidant and anti-inflammatory action&#46; This would help prevent production of oxygen free radicals and the cytokine storm in COVID-19&#46;<a class="elsevierStyleCrossRefs" href="#bib0080"><span class="elsevierStyleSup">16&#44;17</span></a> On the other hand&#44; NAC may have a modulating role in ACE2 receptors&#44; hindering the binding of SARS-CoV-2 to protein S and its entry into the cell&#46;<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> This effect is maintained even with the new variants&#44; including Delta and Omicron&#46;<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> Findings have recently been published on its role in reducing inflammasomes in samples obtained through tracheal biopsy in severe patients with COVID-19 treated with NAC&#46;<a class="elsevierStyleCrossRef" href="#bib0100"><span class="elsevierStyleSup">20</span></a></p><p id="par0125" class="elsevierStylePara elsevierViewall">The low cost of NAC and its good safety profile&#8212;with very few side effects even at high doses&#8212;make it possible to consider it as a treatment option&#46; Nevertheless&#44; there are contradictory results on its therapeutic effect&#46; Most studies include only a small percentage of patients treated with NAC and the doses used as well as the duration and route of administration vary among the different works&#46; A study conducted in Brazil on 135 severe patients who received intravenous NAC in two initial doses showed no differences in regard to progress and mortality&#46;<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> Other studies have reported improvements in mortality and inflammatory patterns&#44; although findings were not statistically significant&#46;<a class="elsevierStyleCrossRefs" href="#bib0110"><span class="elsevierStyleSup">22&#44;23</span></a> A Greek study on 82 patients who received the same dose of NAC as in this study &#40;1200<span class="elsevierStyleHsp" style=""></span>mg&#47;day orally&#41; showed a reduction in mortality and the need for invasive mechanical ventilation&#46;<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a> One of the studies with the largest number of cases included 2071 patients treated with NAC at a dose of 1800<span class="elsevierStyleHsp" style=""></span>mg&#47;day&#46; It also showed lower mortality in those who received NAC&#44; though there were no statistically significant differences in regard to the need for invasive mechanical ventilation&#46;<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> One of the difficulties is establishing the most suitable dose &#40;in terms of safety and efficacy&#41;&#44; considering that the effects of NAC are highly dependent on the dose administered&#46; In general&#44; a minimum NAC dose of 1200<span class="elsevierStyleHsp" style=""></span>mg&#47;day orally is recommended&#46; In patients with severe disease and respiratory compromise&#44; an intravenous NAC dose of 100<span class="elsevierStyleHsp" style=""></span>mg&#47;kg can be used for at least three days&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">24</span></a></p><p id="par0130" class="elsevierStylePara elsevierViewall">Two meta-analyses have recently been published&#46; The work by Paraskevas<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">25</span></a> included eight studies and showed no significant differences in favor of NAC&#44; though the authors recognize the low level of evidence &#40;mainly due to the small number of patients&#41; and the need for future research&#46; The work by Chen<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a> also showed no differences in mortality&#44; need for intubation&#44; or length of hospital stay&#46; However&#44; the clinical trial by Panahi which included 250 patients and in which the treatment group received nebulized NAC did show benefits in the decrease in mortality and inflammatory parameters&#46;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">27</span></a> At present&#44; there are various clinical trials on the use of NAC in COVID-19 which will help clarify these issues&#46;<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">28</span></a></p><p id="par0135" class="elsevierStylePara elsevierViewall">This study has several limitations&#46; First&#44; it is an observational study&#46; Therefore&#44; the results obtained must be confirmed by future randomized&#44; controlled clinical trials&#46; Second&#44; patients were treated according to the protocols in force at the hospital&#44; which included other drugs with a possible beneficial effect in COVID-19&#46; To minimize this limitation&#44; patients were divided into treatment subgroups according to whether they received NAC or not and this variable was used to adjust the multivariate analysis&#46; Third&#44; patients with the new Delta and Omicron variants were not included&#44; though the available evidence shows that NAC may have the same effect on these variants&#46;<a class="elsevierStyleCrossRefs" href="#bib0095"><span class="elsevierStyleSup">19&#44;24</span></a> This study also had strengths&#46; The sample included a large number of patients and it was homogeneous and representative of patients in the first wave&#44; in which the effect of NAC could be studied as there were no specific treatments for these patients yet&#46; The information collected was exhaustive and all data were reviewed and verified&#44; especially data regarding treatment received&#46; Grouping patients with similar treatments made it possible to note the effect of NAC&#46; At present&#44; thanks to the evolution of COVID-19&#44; it is difficult to recruit a group of patients with these characteristics&#46;</p><p id="par0140" class="elsevierStylePara elsevierViewall">In conclusion&#44; the use of NAC at high doses in patients with COVID-19 decreased mortality and was associated with more favorable progress&#46; Future randomized clinical trials or prospective studies may help confirm the role of NAC in these patients&#46; Until then&#44; the low cost and good safety profile of NAC make it a reasonable choice as an associated treatment&#46;</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Ethical considerations</span><p id="par0145" class="elsevierStylePara elsevierViewall">This work was conducted in accordance with the ethics code of the World Medical Association &#40;Declaration of Helsinki&#41;&#46; The study protocol was approved by the Drug Research Ethics Committee &#40;DREC&#41; of the Comprehensive Care Management of Alc&#225;zar de San Juan&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Funding</span><p id="par0150" class="elsevierStylePara elsevierViewall">This research has received neither finantial support nor specific grants from agencies in the public&#44; commercial&#44; or non-profit sectors&#46;</p></span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0135">Conflicts of interest</span><p id="par0155" class="elsevierStylePara elsevierViewall">The authors declare that they do not have any conflicts of interest&#46;</p></span></span>"
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        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec1806197"
          "palabras" => array:4 [
            0 => "N-Acetilciste&#237;na"
            1 => "COVID-19"
            2 => "SARS-CoV-2"
            3 => "Mortalidad hospitalaria"
          ]
        ]
      ]
    ]
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    "resumen" => array:2 [
      "en" => array:3 [
        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Introduction and aim</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">N-Acetylcysteine has been proposed for the treatment of COVID-19 thanks to its mucolytic&#44; antioxidant and anti-inflammatory effects&#46; Our aim is to evaluate its effect on patients admitted with COVID-19 in mortality terms&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Material and methods</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Retrospective single-center cohort study&#46; All patients admitted to our hospital for COVID-19 from March to April 2020 have been considered&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">A total of 378 patients were included&#44; being 196 &#40;51&#46;9&#37;&#41; men&#44; with an average age of 73&#46;3<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;5 years&#46; 52&#46;6&#37; &#40;199&#41; received treatment with N-Acetylcysteine&#46; More than 70&#37; presented coughs&#44; fever&#44; and&#47;or dyspnea&#46; The global hospital mortality was 26&#46;7&#37;&#46; A multivariate analysis through logistic regression identified the age of patients &#91;older than 80&#59; OR&#58; 8&#46;4 &#40;CI95&#37;&#58;3&#8722;23&#46;4&#41;&#93;&#44; a moderate or severe radiologic affectation measured by the RALE score &#91;OR&#58;7&#46;3 &#40;CI95&#37;&#58;3&#46;2&#8211;16&#46;9&#41;&#93;&#44; the tobacco consumption &#91;OR&#58;2&#46;8 &#40;CI95&#37;&#58;1&#46;3&#8211;6&#46;1&#41;&#93; and previous arrhythmia &#91;OR 2&#46;8 &#40;CI95&#37;&#58; 1&#46;3&#8211;6&#46;2&#41;&#93; as risk factor that were independently associated with mortality during the admission&#46; The treatment with N-Acetylcysteine was identified as a protective factor &#91;OR&#58; 0&#46;57 &#40;CI95&#37;&#58; 0&#46;31&#8722;0&#46;99&#41;&#93;&#46; Asthma also seems to have a certain protective factor although it was not statistically significant in our study &#91;OR&#58; 0&#46;19 &#40;CI95&#37;&#58; 0&#46;03&#8211;1&#46;06&#41;&#93;&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Patients with COVID-19 treated with N-acetylcysteine have presented a lower mortality and a better evolution in this study&#46; Future prospective studies or randomized clinical trials must confirm the impact of N-Acetylcysteine on COVID-19 patients&#46;</p></span>"
        "secciones" => array:4 [
          0 => array:2 [
            "identificador" => "abst0005"
            "titulo" => "Introduction and aim"
          ]
          1 => array:2 [
            "identificador" => "abst0010"
            "titulo" => "Material and methods"
          ]
          2 => array:2 [
            "identificador" => "abst0015"
            "titulo" => "Results"
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          3 => array:2 [
            "identificador" => "abst0020"
            "titulo" => "Conclusions"
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      "es" => array:3 [
        "titulo" => "Resumen"
        "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Introducci&#243;n y objetivo</span><p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">La N-Acetilciste&#237;na se ha propuesto para el tratamiento de COVID-19 gracias a sus efectos mucol&#237;tico&#44; antioxidante y antiinflamatorio&#46; El presente estudio tiene como objetivo evaluar su efecto en pacientes ingresados con COVID-19&#44; en t&#233;rminos de mortalidad&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Material y m&#233;todos</span><p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">Estudio de cohorte retrospectivo unic&#233;ntrico&#46; Se incluyeron todos los pacientes ingresados por COVD-19 entre marzo y abril de 2020 en nuestro hospital&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">Un total de 378 pacientes fueron incluidos&#44; de ellos 196 &#40;51&#44;9&#37;&#41; fueron hombres&#44; la edad media fue de 73&#44;3<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#44;5 a&#241;os&#46; 199 &#40;52&#44;6&#37;&#41; pacientes recibieron tratamiento con N-Acetilciste&#237;na&#46; M&#225;s del 70&#37; tuvieron tos&#44; fiebre y&#47;o disnea&#46; La mortalidad hospitalaria global fue del 26&#44;7&#37;&#46; Un an&#225;lisis multivariante mediante regresi&#243;n log&#237;stica identific&#243; la edad de los pacientes &#91;mayores de 80 a&#241;os&#59; OR&#58; 8&#44;4 &#40;IC95&#37;&#58; 3&#8211;23&#44;4&#41;&#93;&#44; una afectaci&#243;n radiol&#243;gica moderada o grave medida por la escala RALE &#91;OR&#58; 7&#44;3 &#40;IC95&#37;&#58; 3&#44;2&#8211;16&#44;9&#41;&#93;&#44; el consumo de tabaco &#91;OR&#58; 2&#44;8 &#40;IC95&#37;&#58; 1&#44;3&#8211;6&#44;1&#41;&#93; y arritmia previa &#91;OR&#58; 2&#44;8 &#40;IC95&#37;&#58; 1&#44;3&#8211;6&#44;2&#41;&#93; como factores de riego que se asociaron independientemente con la mortalidad durante el ingreso&#46; El tratamiento con N-acetilciste&#237;na fue identificado como factor protector &#91;&#40;OR&#58; 0&#44;57 &#40;IC95&#37;&#58; 0&#44;31&#8211;0&#44;99&#41;&#93;&#46; El asma podr&#237;a representar asimismo un factor protector de mortalidad&#44; aunque en el presente estudio no alcanza significaci&#243;n estad&#237;stica &#91;&#40;OR&#58; 0&#44;19 &#40;IC95&#37;&#58; 0&#44;03&#8211;1&#44;06&#41;&#93;&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">Los pacientes con COVID-19 tratados con N-Acetilciste&#237;na presentaron una menor mortalidad y mejor evoluci&#243;n en nuestro estudio&#46; Futuros estudios prospectivos o ensayos cl&#237;nicos aleatorizados deben confirmar el papel de la N-Acetilciste&#237;na en pacientes con COVID-19&#46;</p></span>"
        "secciones" => array:4 [
          0 => array:2 [
            "identificador" => "abst0025"
            "titulo" => "Introducci&#243;n y objetivo"
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          1 => array:2 [
            "identificador" => "abst0030"
            "titulo" => "Material y m&#233;todos"
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          2 => array:2 [
            "identificador" => "abst0035"
            "titulo" => "Resultados"
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          3 => array:2 [
            "identificador" => "abst0040"
            "titulo" => "Conclusiones"
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      ]
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      0 => array:8 [
        "identificador" => "fig0005"
        "etiqueta" => "Figure 1"
        "tipo" => "MULTIMEDIAFIGURA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "figura" => array:1 [
          0 => array:4 [
            "imagen" => "gr1.jpeg"
            "Alto" => 2471
            "Ancho" => 2508
            "Tamanyo" => 188883
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        ]
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at0055"
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            "rol" => "short"
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        "descripcion" => array:1 [
          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">General survival curve &#40;1A&#41;&#44; survival curve according to age groups &#40;1B&#41; and according to N-acetylcysteine treatment &#40;1C&#41;&#46;</p>"
        ]
      ]
      1 => array:8 [
        "identificador" => "tbl0005"
        "etiqueta" => "Table 1"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
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            "identificador" => "at0060"
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          "leyenda" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">NAC&#58; N-acetylcysteine&#59; SD&#58; standard deviation&#59; COPD&#58; chronic obstructive pulmonary disease&#59; VTD&#58; venous thromboembolic disease&#46;</p>"
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                  \t\t\t\t  " colspan="4" align="left" valign="\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black"></th><th class="td" title="\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Overall&#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>378&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">No NAC&#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>179&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-head\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">NAC&#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>199&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">p</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t ; entry_with_role_rowhead " colspan="4" align="left" valign="\n
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                  \t\t\t\t">Mean age<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>SD &#40;range&#41;</td><td class="td" title="\n
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                  \t\t\t\t">73&#46;3<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;5 &#40;22&#8211;100&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">73&#46;9<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>15&#46;4&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">72&#46;8<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>13&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#46;482&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
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                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="2" align="left" valign="middle" colspan="2">Sex</td><td class="td-with-role" title="\n
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                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
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                  \t\t\t\t">Male</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">196 &#40;51&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">89 &#40;49&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">107 &#40;53&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " rowspan="2" align="left" valign="middle">0&#46;432</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
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                  \t\t\t\t">Female</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">182 &#40;48&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">90 &#40;50&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">92 &#40;46&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="4" align="left" valign="\n
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                  \t\t\t\t">Institutionalized</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">51 &#40;13&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">21 &#40;11&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">30 &#40;15&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#46;342&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="12" align="left" valign="middle" colspan="3">Comorbidities</td><td class="td-with-role" title="\n
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                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">Hypertension&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">246 &#40;65&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">122 &#40;68&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">124 &#40;62&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#46;205&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">Dyslipidemia&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">144 &#40;38&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">66 &#40;36&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">78 &#40;39&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;642&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Diabetes&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">124 &#40;32&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">52 &#40;29&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">72 &#40;36&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;140&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">COPD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">40 &#40;10&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">21 &#40;11&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">19 &#40;9&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;491&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Asthma&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">24 &#40;6&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;6&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;789&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Ischemic heart disease&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">49 &#40;13&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">22 &#40;12&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">27 &#40;13&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;712&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Previous arrhythmia&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">51 &#40;13&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">24 &#40;13&#46;4&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">27 &#40;13&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;635&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Cognitive impairment&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">65 &#40;17&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">34 &#40;19&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">31 &#40;15&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;379&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Previous VTD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">39 &#40;10&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23 &#40;12&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">16 &#40;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;125&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Kidney failure&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">54 &#40;14&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">31 &#40;17&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23 &#40;11&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;110&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Solid tumor&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">45 &#40;11&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">26 &#40;14&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">19 &#40;9&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;136&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hematologic tumor&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9 &#40;2&#46;4&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6 &#40;3&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;1&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;605&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="3" align="left" valign="middle">Tobacco use</td><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Non-smoker</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">288 &#40;76&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">138 &#40;77&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">150 &#40;75&#46;4&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="3" align="left" valign="middle">0&#46;864</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Active Smoker</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">80 &#40;21&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">37 &#40;20&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">43 &#40;21&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Former smoker</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10 &#40;2&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 &#40;2&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6 &#40;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab3505651.png"
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Main characteristics of patients included in the study and comparison between patients who did and did not receive NAC&#46;</p>"
        ]
      ]
      2 => array:8 [
        "identificador" => "tbl0010"
        "etiqueta" => "Table 2"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at0065"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:2 [
          "leyenda" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">NAC&#58; N-acetylcysteine&#59; IQR&#58; interquartile range&#59; XR&#58; x-ray&#59; RALE&#58; Radiographic Assessment of Lung Edema&#59; NIMV&#58; non-invasive mechanical ventilation&#46; LMWH&#58; low-molecular-weight heparin&#46;</p>"
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black"></th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Overall&#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>378&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">No NAC&#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>179&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">NAC&#40;<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>199&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">p</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Length of hospital stay &#40;median<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>IQR&#41;</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;002&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="5" align="left" valign="middle">Chest XR</td><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Normal&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">79 &#40;21&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">43 &#40;24&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">36 &#40;18&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="4" align="left" valign="middle">0&#46;274</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mild &#40;RALE score 1&#8211;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">163 &#40;44&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">78 &#40;44&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">85 &#40;43&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate &#40;RALE score 3&#8211;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">111 &#40;30&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">45 &#40;25&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">66 &#40;34&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Severe &#40;RALE score 7&#8211;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15 &#40;4&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8 &#40;4&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7 &#40;3&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Not performed&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="5" align="left" valign="middle">Maximum oxygen required</td><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Not required&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">38 &#40;10&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">21 &#40;11&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">17 &#40;8&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="5" align="left" valign="middle">0&#46;100</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Nasal cannula&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">258 &#40;68&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">112 &#40;62&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">146 &#40;73&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Venturi face mask&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">26 &#40;6&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">14 &#40;7&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Non-rebreather mask&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">51 &#40;13&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30 &#40;16&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">21 &#40;10&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NIMV&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5 &#40;1&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;1&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;1&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="8" align="left" valign="middle">Treatment regimen</td><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hydroxychloroquine&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15 &#40;4&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15 &#40;8&#46;4&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="8" align="left" valign="middle">&#60;0&#46;001</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">LMWH&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">42 &#40;11&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">25 &#40;14&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">17 &#40;8&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hydroxychloroquine<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>Azithromycin&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10 &#40;2&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10 &#40;5&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hydroxychloroquine<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>LMWH&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">45 &#40;11&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23 &#40;12&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">22 &#40;11&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Glucocorticoids<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>LMWH&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">45 &#40;11&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">13 &#40;7&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">32 &#40;16&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hydroxychloroquine<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>Azithromycin<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>LMWH&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">48 &#40;12&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">18 &#40;10&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">30 &#40;15&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hydroxychloroquine<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>Glucocorticoids<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>LMWH&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;3&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;6&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">All&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">161 &#40;42&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">63 &#40;35&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">98 &#40;49&#46;2&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Admission to the intensive care unit</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 &#40;1&#46;1&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;0&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;1&#46;5&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;625&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">In-hospital death</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">101 &#40;26&#46;7&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">56 &#40;31&#46;3&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">45 &#40;22&#46;6&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;057&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
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          "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Clinical characteristics&#44; radiological findings&#44; and treatment regimens and comparison between patients who did and did not receive NAC&#46;</p>"
        ]
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          0 => array:3 [
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          "leyenda" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">OR&#58; Odds Ratio&#59; CI&#58; confidence interval&#46; XR&#58; x-ray&#46;</p>"
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            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black"></th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">OR &#40;95&#37;CI&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">p</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="3" align="left" valign="middle">Age</td><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
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                  \t\t\t\t">65 years or younger</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Reference&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">65 to 80 years</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#46;442 &#40;0&#46;894&#8211;6&#46;667&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;082&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Older than 80 years&#46;</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8&#46;429 &#40;3&#46;029&#8211;23&#46;453&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#60;0&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Tobacco use &#40;smoker<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>former smoker vs non-smoker&#41;</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#46;816 &#40;1&#46;1310&#8211;6&#46;056&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;008&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Previous arrhythmia</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#46;791 &#40;1&#46;255&#8211;6&#46;207&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;012&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Asthma</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;190 &#40;0&#46;034&#8211;1&#46;061&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;058&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead rowgroup " rowspan="3" align="left" valign="middle" colspan="2">Chest x-ray</td><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Normal&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Reference&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mild&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;846 &#40;0&#46;370&#8211;1&#46;931&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;691&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate<span class="elsevierStyleHsp" style=""></span>&#43;<span class="elsevierStyleHsp" style=""></span>Severe&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&#46;322 &#40;3&#46;179&#8211;16&#46;863&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#60;0&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">N-acetylcysteine</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;566 &#40;0&#46;310&#8722;0&#46;997&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#46;049&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
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                0 => "xTab3505649.png"
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          "en" => "<p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Multivariate analysis of risk factors of mortality&#44; adjusted for the main comorbidities&#46;</p>"
        ]
      ]
    ]
    "bibliografia" => array:2 [
      "titulo" => "References"
      "seccion" => array:1 [
        0 => array:2 [
          "identificador" => "bibs0005"
          "bibliografiaReferencia" => array:28 [
            0 => array:3 [
              "identificador" => "bib0005"
              "etiqueta" => "1"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Rationale for the use of N-acetylcysteine in both prevention and adjuvant therapy of COVID-19"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:3 [
                            0 => "S&#46; De Flora"
                            1 => "R&#46; Balansky"
                            2 => "S&#46; La Maestra"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1096/fj.202001807"
                      "Revista" => array:6 [
                        "tituloSerie" => "FASEB J"
                        "fecha" => "2020"
                        "volumen" => "34"
                        "paginaInicial" => "13185"
                        "paginaFinal" => "13193"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/32780893"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            1 => array:3 [
              "identificador" => "bib0010"
              "etiqueta" => "2"
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                0 => array:2 [
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                        0 => array:2 [
                          "etal" => true
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                            2 => "C&#46; Fossum"
                            3 => "H&#46; Lowater"
                            4 => "C&#46; McCracken"
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                    0 => array:2 [
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                        "paginaInicial" => "644"
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                        "link" => array:1 [
                          0 => array:2 [
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              "identificador" => "bib0015"
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                0 => array:2 [
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                            2 => "G&#46; Gaudernack"
                            3 => "G&#46; Westman"
                            4 => "C&#46; Melief"
                            5 => "J&#46; Rockberg"
                          ]
                        ]
                      ]
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                  "host" => array:1 [
                    0 => array:2 [
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                        "tituloSerie" => "Toxicol Rep"
                        "fecha" => "2020"
                        "volumen" => "7"
                        "paginaInicial" => "768"
                        "paginaFinal" => "771"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/32632359"
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                          ]
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                ]
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                    0 => array:2 [
                      "titulo" => "Therapeutic potential of N-acetyl cysteine &#40;NAC&#41; in preventing cytokine storm in COVID-19&#58; review of current evidence"
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                          "etal" => false
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                            0 => "R&#46;R&#46; Mohanty"
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                            2 => "S&#46; Das"
                            3 => "B&#46;R&#46; Meher"
                          ]
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                    0 => array:2 [
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                        "tituloSerie" => "Eur Rev Med Pharmacol Sci"
                        "fecha" => "2021"
                        "volumen" => "25"
                        "paginaInicial" => "2802"
                        "paginaFinal" => "2807"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33829465"
                            "web" => "Medline"
                          ]
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              "identificador" => "bib0025"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Changes in glycolytic pathway in SARS-COV 2 infection and their importance in understanding the severity of COVID-19"
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                        0 => array:2 [
                          "etal" => false
                          "autores" => array:5 [
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                            1 => "P&#46; P&#243;voa"
                            2 => "P&#46; Paix&#227;o"
                            3 => "A&#46; Mendon&#231;a"
                            4 => "L&#46; Taborda-Barata"
                          ]
                        ]
                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:3 [
                        "tituloSerie" => "Front Chem"
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                        "volumen" => "9"
                      ]
                    ]
                  ]
                ]
              ]
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            5 => array:3 [
              "identificador" => "bib0030"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "N-Acetylcysteine&#58; a potential therapeutic agent for SARS-CoV-2"
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                          "etal" => false
                          "autores" => array:2 [
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                            1 => "J&#46; Corn"
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                    ]
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                  "host" => array:1 [
                    0 => array:1 [
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                    ]
                  ]
                ]
              ]
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            6 => array:3 [
              "identificador" => "bib0035"
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                0 => array:2 [
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                    0 => array:2 [
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                          "etal" => false
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                            0 => "S&#46;R&#46; Bauer"
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                            2 => "M&#46; Rath"
                            3 => "S&#46;A&#46; Thomas"
                          ]
                        ]
                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:2 [
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                        "tituloSerie" => "Cleve Clin J Med"
                        "fecha" => "2020"
                      ]
                    ]
                  ]
                ]
              ]
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            7 => array:3 [
              "identificador" => "bib0040"
              "etiqueta" => "8"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "The combination of bromelain and acetylcysteine &#40;BromAc&#41; synergistically inactivates SARS-CoV-2"
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                        0 => array:2 [
                          "etal" => true
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                            3 => "V&#46; Kepenekian"
                            4 => "S&#46; Badar"
                            5 => "A&#46;H&#46; Mekkawy"
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                        ]
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                    ]
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                    0 => array:2 [
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                        "volumen" => "13"
                        "paginaInicial" => "425"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33800932"
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                    0 => array:2 [
                      "titulo" => "Potential role of antioxidant and anti-inflammatory therapies to prevent severe SARS-Cov-2 complications"
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                          "etal" => false
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                            2 => "L&#46; Cominacini"
                            3 => "C&#46; Mozzini"
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                    ]
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                        "volumen" => "10"
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                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33578849"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
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            9 => array:3 [
              "identificador" => "bib0050"
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              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Bottom-up analysis of emergent properties of N-acetylcysteine as an adjuvant therapy for COVID-19"
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                          "etal" => true
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                            2 => "A&#46; Kapasi"
                            3 => "T&#46; Paul"
                            4 => "S&#46;S&#46; Makkar"
                            5 => "V&#46; Castaneda"
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                        "paginaFinal" => "52"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33816149"
                            "web" => "Medline"
                          ]
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                      ]
                    ]
                  ]
                ]
              ]
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            10 => array:3 [
              "identificador" => "bib0055"
              "etiqueta" => "11"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "N-Acetylcysteine to combat COVID-19&#58; an evidence review"
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                          "etal" => false
                          "autores" => array:2 [
                            0 => "Z&#46; Shi"
                            1 => "C&#46;A&#46; Puyo"
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                        ]
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                    ]
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                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.2147/TCRM.S273700"
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                        "tituloSerie" => "Ther Clin Risk Manag"
                        "fecha" => "2020"
                        "volumen" => "16"
                        "paginaInicial" => "1047"
                        "paginaFinal" => "1055"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33177829"
                            "web" => "Medline"
                          ]
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                    0 => array:2 [
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                          "etal" => false
                          "autores" => array:1 [
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                      ]
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                  ]
                ]
              ]
            ]
            12 => array:3 [
              "identificador" => "bib0065"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Clinical characteristics of patients hospitalized with COVID-19 in Spain&#58; Results from the SEMI-COVID-19 Registry"
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                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
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                      ]
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                    0 => array:2 [
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                      "Revista" => array:6 [
                        "tituloSerie" => "Rev Clin Esp"
                        "fecha" => "2020"
                        "volumen" => "220"
                        "paginaInicial" => "480"
                        "paginaFinal" => "494"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33994573"
                            "web" => "Medline"
                          ]
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                    ]
                  ]
                ]
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              "identificador" => "bib0070"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Asthma and COVID-19&#58; an update"
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                        "tituloSerie" => "Eur Respir Rev"
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              "identificador" => "bib0075"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "The impact of COVID-19 on patients with asthma"
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                        ]
                      ]
                    ]
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                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:3 [
                        "tituloSerie" => "Eur Respir J"
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                      ]
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                  ]
                ]
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            15 => array:3 [
              "identificador" => "bib0080"
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                0 => array:2 [
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                      "titulo" => "N-acetyl-cysteine reduces the risk for mechanical ventilation and mortality in patients with COVID-19 pneumonia&#58; a two-center retrospective cohort study"
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                        "paginaFinal" => "854"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/34182881"
                            "web" => "Medline"
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                ]
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              "identificador" => "bib0085"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Use of N-Acetylcysteine at high doses as an oral treatment for patients hospitalized with COVID-19"
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                        0 => array:2 [
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                            5 => "C&#46; Echeverry"
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                  ]
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              "identificador" => "bib0090"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Disruption of disulfides within RBD of SARS-CoV-2 spike protein prevents fusion and represents a target for viral entry inhibition by registered drugs"
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                    ]
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                        "tituloSerie" => "FASEB J"
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                      ]
                    ]
                  ]
                ]
              ]
            ]
            18 => array:3 [
              "identificador" => "bib0095"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Inhibition of the cell uptake of delta and omicron SARS-CoV-2 pseudoviruses by N-acetylcysteine irrespective of the oxidoreductive environment"
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                        0 => array:2 [
                          "etal" => false
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                            3 => "F&#46; D&#8217;Agostini"
                            4 => "R&#46;T&#46; Micale"
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                    0 => array:2 [
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                        "tituloSerie" => "Cells"
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                        "paginaInicial" => "3313"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/36291178"
                            "web" => "Medline"
                          ]
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                  ]
                ]
              ]
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              "identificador" => "bib0100"
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                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "N-acetylcysteine reduces inflammasome activation induced by SARS-CoV-2 proteins in vitro"
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                        "tituloSerie" => "Int J Mol Sci"
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                        "volumen" => "23"
                        "paginaInicial" => "14518"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/36498845"
                            "web" => "Medline"
                          ]
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                ]
              ]
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              "identificador" => "bib0105"
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                0 => array:2 [
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                    0 => array:2 [
                      "titulo" => "Double-blind&#44; randomized&#44; placebo-controlled trial with N-acetylcysteine for treatment of severe acute respiratory syndrome caused by coronavirus disease 2019 &#40;COVID-19&#41;"
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                        0 => array:2 [
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                            2 => "A&#46;D&#46; M&#252;ller"
                            3 => "C&#46;E&#46; Chaves"
                            4 => "M&#46;A&#46; Fukuhara"
                            5 => "E&#46;A&#46; da Silva"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1093/cid/ciaa1443"
                      "Revista" => array:6 [
                        "tituloSerie" => "Clin Infect Dis"
                        "fecha" => "2021"
                        "volumen" => "72"
                        "paginaInicial" => "e736"
                        "paginaFinal" => "41"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/32964918"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            21 => array:3 [
              "identificador" => "bib0110"
              "etiqueta" => "22"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "A pilot study on intravenous N-acetylcysteine treatment in patients with mild-to-moderate COVID19-associated acute respiratory distress syndrome"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:6 [
                            0 => "A&#46; Taher"
                            1 => "M&#46; Lashgari"
                            2 => "L&#46; Sedighi"
                            3 => "F&#46; Rahimi-Bashar"
                            4 => "J&#46; Poorolajal"
                            5 => "M&#46; Mehrpooya"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1007/s43440-021-00296-2"
                      "Revista" => array:6 [
                        "tituloSerie" => "Pharmacol Rep"
                        "fecha" => "2021"
                        "volumen" => "73"
                        "paginaInicial" => "1650"
                        "paginaFinal" => "1659"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/34114174"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            22 => array:3 [
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              "etiqueta" => "23"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "N-acetylcysteine for the treatment of COVID-19 among hospitalized patients"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "S&#46;N&#46; Avdeev"
                            1 => "V&#46;V&#46; Gaynitdinova"
                            2 => "Z&#46;M&#46; Merzhoeva"
                            3 => "Z&#46;G&#46;-M&#46; Berikkhanov"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1016/j.jinf.2021.08.005"
                      "Revista" => array:6 [
                        "tituloSerie" => "Journal of Infection"
                        "fecha" => "2022"
                        "volumen" => "84"
                        "paginaInicial" => "94"
                        "paginaFinal" => "118"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/34371077"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            23 => array:3 [
              "identificador" => "bib0120"
              "etiqueta" => "24"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "N-acetylcysteine for prevention and treatment of COVID-19&#58; current state of evidence and future directions"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:4 [
                            0 => "J&#46;L&#46; Izquierdo-Alonso"
                            1 => "S&#46; P&#233;rez-Rial"
                            2 => "C&#46;G&#46; Rivera"
                            3 => "G&#46; Peces-Barba"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1016/j.jiph.2022.11.009"
                      "Revista" => array:6 [
                        "tituloSerie" => "J Infect Public Health"
                        "fecha" => "2022"
                        "volumen" => "15"
                        "paginaInicial" => "1477"
                        "paginaFinal" => "1483"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/36410267"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            24 => array:3 [
              "identificador" => "bib0125"
              "etiqueta" => "25"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "N-acetylcysteine efficacy in patients hospitalized with COVID-19 pneumonia&#58; a systematic review and meta-analysis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "T&#46; Paraskevas"
                            1 => "A&#46; Kantanis"
                            2 => "I&#46; Karalis"
                            3 => "C&#46; Michailides"
                            4 => "V&#46; Karamouzos"
                            5 => "I&#46; Koniari"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.2478/rjim-2023-0001"
                      "Revista" => array:6 [
                        "tituloSerie" => "Rom J Intern Med"
                        "fecha" => "2023"
                        "volumen" => "61"
                        "paginaInicial" => "41"
                        "paginaFinal" => "52"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/36627753"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            25 => array:3 [
              "identificador" => "bib0130"
              "etiqueta" => "26"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Is N-acetylcysteine effective in treating patients with coronavirus disease 2019&#63; A meta-analysis"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "C&#46;-H&#46; Chen"
                            1 => "K&#46;-F&#46; Hung"
                            2 => "C&#46;-Y&#46; Huang"
                            3 => "J&#46;-L&#46; Leong"
                            4 => "Y&#46;-C&#46; Chu"
                            5 => "C&#46;-Y&#46; Chang"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:2 [
                      "doi" => "10.1097/JCMA.0000000000000869"
                      "Revista" => array:5 [
                        "tituloSerie" => "J Chin Med Assoc"
                        "fecha" => "2023"
                        "volumen" => "86"
                        "paginaInicial" => "274"
                        "link" => array:1 [
                          0 => array:2 [
                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/36728396"
                            "web" => "Medline"
                          ]
                        ]
                      ]
                    ]
                  ]
                ]
              ]
            ]
            26 => array:3 [
              "identificador" => "bib0135"
              "etiqueta" => "27"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Evaluation the efficacy and safety of N-acetylcysteine inhalation spray in controlling the symptoms of patients with COVID-19&#58; an open-label randomized controlled clinical trial"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "Y&#46; Panahi"
                            1 => "M&#46; Ghanei"
                            2 => "M&#46; Rahimi"
                            3 => "A&#46; Samim"
                            4 => "A&#46; Vahedian-Azimi"
                            5 => "S&#46;L&#46; Atkin"
                          ]
                        ]
                      ]
                    ]
                  ]
                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:3 [
                        "tituloSerie" => "J Med Virol"
                        "fecha" => "2023"
                        "volumen" => "95"
                      ]
                    ]
                  ]
                ]
              ]
            ]
            27 => array:3 [
              "identificador" => "bib0140"
              "etiqueta" => "28"
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                0 => array:1 [
                  "referenciaCompleta" => "<a target="_blank" href="https://clinicaltrials.gov/ct2/results?term=acetylcysteine+%20AND%20+Covid%26Search">https&#58;&#47;&#47;clinicaltrials&#46;gov&#47;ct2&#47;results&#63;term&#61;acetylcysteine&#43;&#37;20AND&#37;20&#43;Covid&#38;Search</a>&#46; &#40;Accessed 19 June 2023&#41;&#46;"
                ]
              ]
            ]
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Journal Information
Vol. 223. Issue 8.
Pages 479-485 (October 2023)
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Vol. 223. Issue 8.
Pages 479-485 (October 2023)
Original article
Impact of N-Acetylcysteine in the mortality of patients hospitalized with COVID-19: a retrospective cohort study
Efecto de la N-Acetilcisteína en la mortalidad de pacientes ingresados por COVID-19: estudio de cohorte retrospectivo
M.A. Galindo-Andúgara,
Corresponding author
magalindo@sescam.jccm.es

Corresponding author.
, Á. Arias Ariasb, J. Alfonso García Guerrac, I. Fernández Visierd, J. Manuel Fernández Ibáñeze, A. Bellido Maldonadoc
a Servicio de Medicina Interna. Hospital General La Mancha Centro, Alcázar de San Juan (C. Real), Spain
b Unidad de Docencia, Investigación y Formación, Hospital General La Mancha Centro, Alcázar de San Juan (C. Real), Spain
c Sección de Neumología, Hospital General La Mancha Centro, Alcázar de San Juan (C. Real), Spain
d Sección de Aparato Digestivo, Hospital General La Mancha Centro, Alcázar de San Juan (C. Real), Spain
e Sección de Geriatría, Hospital General La Mancha Centro, Alcázar de San Juan (C. Real), Spain
Article information
Abstract
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Figures (1)
Tables (3)
Table 1. Main characteristics of patients included in the study and comparison between patients who did and did not receive NAC.
Table 2. Clinical characteristics, radiological findings, and treatment regimens and comparison between patients who did and did not receive NAC.
Table 3. Multivariate analysis of risk factors of mortality, adjusted for the main comorbidities.
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Abstract
Introduction and aim

N-Acetylcysteine has been proposed for the treatment of COVID-19 thanks to its mucolytic, antioxidant and anti-inflammatory effects. Our aim is to evaluate its effect on patients admitted with COVID-19 in mortality terms.

Material and methods

Retrospective single-center cohort study. All patients admitted to our hospital for COVID-19 from March to April 2020 have been considered.

Results

A total of 378 patients were included, being 196 (51.9%) men, with an average age of 73.3±14.5 years. 52.6% (199) received treatment with N-Acetylcysteine. More than 70% presented coughs, fever, and/or dyspnea. The global hospital mortality was 26.7%. A multivariate analysis through logistic regression identified the age of patients [older than 80; OR: 8.4 (CI95%:3−23.4)], a moderate or severe radiologic affectation measured by the RALE score [OR:7.3 (CI95%:3.2–16.9)], the tobacco consumption [OR:2.8 (CI95%:1.3–6.1)] and previous arrhythmia [OR 2.8 (CI95%: 1.3–6.2)] as risk factor that were independently associated with mortality during the admission. The treatment with N-Acetylcysteine was identified as a protective factor [OR: 0.57 (CI95%: 0.31−0.99)]. Asthma also seems to have a certain protective factor although it was not statistically significant in our study [OR: 0.19 (CI95%: 0.03–1.06)].

Conclusions

Patients with COVID-19 treated with N-acetylcysteine have presented a lower mortality and a better evolution in this study. Future prospective studies or randomized clinical trials must confirm the impact of N-Acetylcysteine on COVID-19 patients.

Keywords:
N-Acetylcysteine
COVID-19
SARS-CoV-2
Hospital mortality
Resumen
Introducción y objetivo

La N-Acetilcisteína se ha propuesto para el tratamiento de COVID-19 gracias a sus efectos mucolítico, antioxidante y antiinflamatorio. El presente estudio tiene como objetivo evaluar su efecto en pacientes ingresados con COVID-19, en términos de mortalidad.

Material y métodos

Estudio de cohorte retrospectivo unicéntrico. Se incluyeron todos los pacientes ingresados por COVD-19 entre marzo y abril de 2020 en nuestro hospital.

Resultados

Un total de 378 pacientes fueron incluidos, de ellos 196 (51,9%) fueron hombres, la edad media fue de 73,3±14,5 años. 199 (52,6%) pacientes recibieron tratamiento con N-Acetilcisteína. Más del 70% tuvieron tos, fiebre y/o disnea. La mortalidad hospitalaria global fue del 26,7%. Un análisis multivariante mediante regresión logística identificó la edad de los pacientes [mayores de 80 años; OR: 8,4 (IC95%: 3–23,4)], una afectación radiológica moderada o grave medida por la escala RALE [OR: 7,3 (IC95%: 3,2–16,9)], el consumo de tabaco [OR: 2,8 (IC95%: 1,3–6,1)] y arritmia previa [OR: 2,8 (IC95%: 1,3–6,2)] como factores de riego que se asociaron independientemente con la mortalidad durante el ingreso. El tratamiento con N-acetilcisteína fue identificado como factor protector [(OR: 0,57 (IC95%: 0,31–0,99)]. El asma podría representar asimismo un factor protector de mortalidad, aunque en el presente estudio no alcanza significación estadística [(OR: 0,19 (IC95%: 0,03–1,06)].

Conclusiones

Los pacientes con COVID-19 tratados con N-Acetilcisteína presentaron una menor mortalidad y mejor evolución en nuestro estudio. Futuros estudios prospectivos o ensayos clínicos aleatorizados deben confirmar el papel de la N-Acetilcisteína en pacientes con COVID-19.

Palabras clave:
N-Acetilcisteína
COVID-19
SARS-CoV-2
Mortalidad hospitalaria

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