<?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>S0016-38132020000500379</article-id>
<article-id pub-id-type="doi">10.24875/gmm.20000430</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Características clínicas y gravedad de COVID-19 en adultos mexicanos]]></article-title>
<article-title xml:lang="en"><![CDATA[Clinical characteristics and severity of COVID-19 among Mexican adults]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Sastré]]></surname>
<given-names><![CDATA[Miguel A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdés]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Hernández]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Departamento de Bioquímica, Centro de Investigación y de Estudios Avanzados ]]></institution>
<addr-line><![CDATA[Ciudad de Méxic ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Departamento de Atención a la Salud Universidad Autónoma Metropolitana ]]></institution>
<addr-line><![CDATA[Xochimilco Ciudad de Méxic]]></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>379</fpage>
<lpage>387</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0016-38132020000500379&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0016-38132020000500379&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0016-38132020000500379&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Se ha señalado que factores como obesidad, diabetes, hipertensión y edad influyen en la progresión de COVID-19; sin embargo, la evidencia para otras condiciones no es concluyente.  Objetivo: Identificar qué antecedentes clínicos están relacionados con la gravedad de COVID-19 y si la edad funge como un modificador de efecto de la relación entre comorbilidades cardiometabólicas (CCM) y progresión de COVID-19.  Método: Se analizaron los datos de casos confirmados &#8805; 20 años (n = 155 017). La hospitalización, el desarrollo de neumonía, el requerimiento de intubación, el ingreso a la unidad de cuidados intensivos y la muerte constituyeron las variables dependientes en la estimación de modelos de regresión de Poisson y la interacción entre edad y CCM, las independientes.  Resultados: Tener CCM, así como otras comorbilidades, se relacionó directamente con la progresión de COVID-19. El riesgo de gravedad de COVID-19 asociado a las CCM fue menor conforme la edad era mayor. El asma y el tabaquismo no fueron factores de riesgo para la progresión de COVID-19.  Conclusión: En la población mexicana, el riesgo de progresión de COVID-19 asociada a comorbilidades fue mayor en los adultos jóvenes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Obesity, diabetes, hypertension and age have been pointed at as factors that influence on the progression of COVID-19; however, evidence for other conditions is inconclusive.  Objective: To identify which clinical characteristics are related to COVID-19 severity and to determine whether age acts as a modifier of the relationship between cardio-metabolic comorbidities (CMC) and COVID-19 progression.  Method: Data on &#8805; 20-year-old confirmed cases (n = 155 017) were analyzed. Hospitalization, development of pneumonia, intubation requirement, intensive care unit admission and death were the dependent variables in Poisson regression models estimation, whereas the interaction between age and different CMCs were the independent variables.  Results: Having CMCs, as well as other comorbidities, was directly related to COVID-19 progression. The risk for COVID-19 severity was lower as age was more advanced. Asthma and smoking were not risk factors for the progression of COVID-19.  Conclusion: In the Mexican population, the risk of COVID-19 progression associated with comorbidities was higher in young adults.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Obesidad]]></kwd>
<kwd lng="es"><![CDATA[Hipertensión]]></kwd>
<kwd lng="es"><![CDATA[Diabetes]]></kwd>
<kwd lng="es"><![CDATA[Asma]]></kwd>
<kwd lng="es"><![CDATA[Tabaquismo]]></kwd>
<kwd lng="es"><![CDATA[Infección por coronavirus]]></kwd>
<kwd lng="es"><![CDATA[Edad]]></kwd>
<kwd lng="es"><![CDATA[Adulto joven]]></kwd>
<kwd lng="en"><![CDATA[Obesity]]></kwd>
<kwd lng="en"><![CDATA[Hypertension]]></kwd>
<kwd lng="en"><![CDATA[Diabetes]]></kwd>
<kwd lng="en"><![CDATA[Asthma]]></kwd>
<kwd lng="en"><![CDATA[Smoking]]></kwd>
<kwd lng="en"><![CDATA[Coronavirus infection]]></kwd>
<kwd lng="en"><![CDATA[Age]]></kwd>
<kwd lng="en"><![CDATA[Young adult]]></kwd>
</kwd-group>
</article-meta>
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