<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2524-177X</journal-id>
<journal-title><![CDATA[Revista médica del Hospital General de México]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. med. Hosp. Gen. Méx.]]></abbrev-journal-title>
<issn>2524-177X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Médica del Hospital General de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2524-177X2021000200064</article-id>
<article-id pub-id-type="doi">10.24875/hgmx.20000078</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Biomarkers associated with coronavirus disease-19 disease progression in a Mexican hospital]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gerson-Cwilich]]></surname>
<given-names><![CDATA[Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Shveid-Gerson]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Noguez-Ramos]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Zepeda]]></surname>
<given-names><![CDATA[Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Soto]]></surname>
<given-names><![CDATA[Benigno E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villegas-Osorno]]></surname>
<given-names><![CDATA[Diana A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valente-Acosta]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Guerrero]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno-Sánchez]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,The ABC Medical Center IAP Department of Medical Oncology ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,The ABC Medical Center IAP Department of Infectious Diseases ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,The ABC Medical Center IAP Department of Internal Medicine ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>84</volume>
<numero>2</numero>
<fpage>64</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2524-177X2021000200064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2524-177X2021000200064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2524-177X2021000200064&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: The Coronavirus disease (COVID-19) pandemic is a worldwide challenge. There are few useful tools to predict patient outcomes. Identification of biomarkers able to predict progression of the disease could improve the treatment of these patients.  Objective: The objective of the study was to identify biomarkers of disease progression among patients with severe COVID-19 pneumonia.  Materials and methods: A retrospective cohort study was conducted among severe COVID-19 pneumonia patients hospitalized in the American British Cowdray Medical Center in Mexico City. Disease progression was defined as use of vasoactive amines, need of non-invasive or invasive mechanical ventilation or death. Studied biomarkers included neutrophil/lymphocyte index, lymphocyte/platelet Ratio, C reactive protein, procalcitonin, D Dimer, lactic dehydrogenase (LDH), ferritin, 25-OH-Vitamin D, and interleukin 6.  Results: We report 46 patients with severe COVID-19 pneumonia. Mean age was 51 years, the majority of whom 30 (65%) male. Median hospitalization was 9 days. 23 (50%) of patients presented disease progression. Ferritin and LDH were strongly associated with disease progression among our cohort. In addition, age was associated with worst prognosis with a relative risk 4.5 (1.2-16.9, p = 0.003).  Conclusions: Age, ferritin, and LDH were associated with disease progression among patients with severe COVID-19 pneumonia.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Severe acute respiratory syndrome coronavirus 2]]></kwd>
<kwd lng="en"><![CDATA[Coronavirus disease-19]]></kwd>
<kwd lng="en"><![CDATA[Biomarkers]]></kwd>
<kwd lng="en"><![CDATA[Lactic dehydrogenase]]></kwd>
<kwd lng="en"><![CDATA[Ferritin]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
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