<?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>0016-3813</journal-id>
<journal-title><![CDATA[Gaceta médica de México]]></journal-title>
<abbrev-journal-title><![CDATA[Gac. Méd. Méx]]></abbrev-journal-title>
<issn>0016-3813</issn>
<publisher>
<publisher-name><![CDATA[Academia Nacional de Medicina de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0016-38132020000500413</article-id>
<article-id pub-id-type="doi">10.24875/gmm.20000458</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilidad de los índices neutrófilo/linfocito, monocito/linfocito y linfocito/plaqueta para el pronóstico de complicaciones asociadas a COVID-19]]></article-title>
<article-title xml:lang="en"><![CDATA[Usefulness of the neutrophil-to-lymphocyte, monocyte-to-lymphocyte and lymphocyte-to-platelet ratios for the prognosis of COVID-19-associated complications]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Peñafiel]]></surname>
<given-names><![CDATA[Christian O.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos-González]]></surname>
<given-names><![CDATA[Brenda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-López]]></surname>
<given-names><![CDATA[Eder N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galván-Flores]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Vázquez]]></surname>
<given-names><![CDATA[Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santoyo-Sánchez]]></surname>
<given-names><![CDATA[Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montes de Oca-Yemha]]></surname>
<given-names><![CDATA[Rosaura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bejarano-Rosales]]></surname>
<given-names><![CDATA[Mónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas-González]]></surname>
<given-names><![CDATA[Érika]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olarte-Carrillo]]></surname>
<given-names><![CDATA[Irma]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Murillo]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Tovar]]></surname>
<given-names><![CDATA[Adolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Salud del Estado de México Hospital General de Cuautitlán Departamento de Medicina Interna]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Secretaría de Salud Hospital General de México “Dr. Eduardo Liceaga” ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Secretaría de Salud Hospital General de México Dr. Eduardo Liceaga Departamento de Nutrición Clínica]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2020</year>
</pub-date>
<volume>156</volume>
<numero>5</numero>
<fpage>413</fpage>
<lpage>419</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0016-38132020000500413&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0016-38132020000500413&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0016-38132020000500413&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Diversos biomarcadores basados en conteos sanguíneos han sido de utilidad para el pronóstico de los pacientes en estado crítico por COVID-19.  Objetivo: Describir la utilidad de los índices neutrófilo/linfocito (INL), monocito/linfocito (IML) y linfocito/plaqueta (IPL) para el pronóstico de la mortalidad y necesidad de soporte ventilatorio por COVID-19.  Método: Cohorte retrospectiva de registros clínicos de pacientes con COVID-19 que requirieron atención hospitalaria.  Resultados: Se analizaron 125 casos, la edad media fue de 51 años y 60 %, del sexo masculino; 21.6 % padecía diabetes mellitus tipo 2 y 18.4 %, hipertensión. La media de leucocitos fue 9.5 × 103/mL y la de neutrófilos, de 8.0 × 103/mL. La media del INL fue de 12.01; del IML, de 0.442 y del IPL, de 373.07. Respecto al área bajo la curva se registraron los siguientes valores en cuanto a mortalidad: INL, 0.594; IML, 0.628 e ILP, 0.505; en cuanto a ventilación mecánica: INL, 0.581; IML, 0.619 e ILP, 0.547. En el análisis univariado, INL &gt; 13 (RM = 2.750, p = 0.001) e IML &gt; 0.5 (RM = 2.069, p = 0.047) se asociaron a mortalidad; ILP no mostró impacto en la mortalidad ni en el soporte respiratorio.  Conclusión: INL e IML son de utilidad para predecir la mortalidad en pacientes con COVID-19.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Various biomarkers based on blood counts have been useful for the prognosis of patients critically ill with COVID-19.  Objective: To describe the usefulness of the neutrophil-to-lymphocyte (NLR), monocyte-to-lymphocyte (MLR) and lymphocyte-to-platelet ([LPR) ratios for the prognosis of mortality and ventilatory support requirement for COVID-19.  Method: Retrospective cohort of clinical records of patients with COVID-19 who required hospital care.  Results: One-hundred and twenty-five cases were analyzed; mean age was 51 years, and 60 % were of the male gender; 21.6 % had type 2 diabetes mellitus, and 18.4 % had hypertension. Mean leukocyte count was 9.5 × 103/mL, with a neutrophil mean of 8.0 × 103/mL. Mean NLR was 12.01, while for MLR it was 0.442, and for LPR, 373.07. Regarding the area under the curve, the following values were recorded for mortality: 0.594 for NLR, 0.628 for MLR and 0.505 for LPR; as for mechanical ventilation, the values were 0.581 for NLR, 0.619 for MLR and 0.547 for LPR. In the univariate analysis, an NLR value &gt; 13 (OR: 2.750, p = 0.001) and an MLR of &gt; 0.5 (OR: 2.069, p = 0.047) were associated with mortality. LPR showed no impact on mortality or respiratory support.  Conclusion: NLR and MLR are useful for predicting mortality in patients with COVID-19.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Neutrófilos]]></kwd>
<kwd lng="es"><![CDATA[Linfocitos]]></kwd>
<kwd lng="es"><![CDATA[Plaquetas]]></kwd>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[Índice pronóstico]]></kwd>
<kwd lng="en"><![CDATA[Neutrophils]]></kwd>
<kwd lng="en"><![CDATA[Lymphocytes]]></kwd>
<kwd lng="en"><![CDATA[Platelets COVID-19]]></kwd>
<kwd lng="en"><![CDATA[Prognostic index]]></kwd>
</kwd-group>
</article-meta>
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