<?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>0036-3634</journal-id>
<journal-title><![CDATA[Salud Pública de México]]></journal-title>
<abbrev-journal-title><![CDATA[Salud pública Méx]]></abbrev-journal-title>
<issn>0036-3634</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud Pública]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0036-36342021000400471</article-id>
<article-id pub-id-type="doi">10.21149/12355</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Asociación entre mortalidad por Covid-19 y contaminación atmosférica en ciudades mexicanas]]></article-title>
<article-title xml:lang="en"><![CDATA[Association between Covid-19 mortality and atmospheric pollution in Mexican cities]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabrera-Cano]]></surname>
<given-names><![CDATA[Ángel Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-de la Cruz]]></surname>
<given-names><![CDATA[Julio César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gloria-Alvarado]]></surname>
<given-names><![CDATA[Ana Berenice]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álamo-Hernández]]></surname>
<given-names><![CDATA[Urinda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Riojas-Rodríguez]]></surname>
<given-names><![CDATA[Horacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Programa Multidisciplinario de Posgrado en Ciencias Ambientales ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Salud Pública Centro de Investigación en Salud Poblacional Dirección de Salud Ambiental]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Cuauhtémoc  ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<volume>63</volume>
<numero>4</numero>
<fpage>471</fpage>
<lpage>477</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0036-36342021000400471&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0036-36342021000400471&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0036-36342021000400471&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  Analizar la asociación entre la exposición crónica a contaminantes atmosféricos y la tasa de mortalidad por Covid-19 en ciudades mexicanas.  Material y métodos:  Estudio ecológico en 25 ciudades mexicanas utilizando el reporte de casos diarios de muertes por Covid-19 (febrero a junio 2020) y datos validados de contaminantes atmosféricos, considerando concentraciones promedio en cada ciudad en el último año. Se utilizaron modelos de regresión Poisson, con modelos aditivos generalizados y variables de ajuste.  Resultados:  Se encontró un incremento significativo de 3.5% (IC95% 2.3-4.7) en la tasa de mortalidad por Covid-19 por incremento de 1µg/m3 de NO2. La asociación con PM2.5 fue no significativa, con un incremento de 1.8% por cada µg/m3.  Conclusiones:  Los resultados sugieren una asociación entre la mortalidad por Covid-19 y la exposición a NO2. Esta primera aproximación del riesgo asociado con la contaminación del aire requiere de análisis más precisos, pero es consistente con estudios de otras regiones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective:  To analyze the relationship between chronic exposures to air pollution with Covid-19 death rate in Mexican cities.  Materials and methods:  Ecological study in 25 Mexican cities using the report of daily Covid-19 deaths (from February to June 2020) and validated data of air pollutants, considering average concentrations in each city for the last year. Poisson regression models using generalized additive models with adjustment variables (GAM) were used.  Results:  A significant increase of 3.5% (95% CI 2.3-4.7) was found in Covid-19 death rate for each 1µg/m3 in annual concentration of NO2. The association with PM2.5 was not significant, with an increase of 1.8% for each 1µg/m3.  Conclusions:  Results suggest an association between Covid-19 mortality and chronic exposure to NO2. This first approximation of the risk associated with air pollution requires a more precise analysis, but is consistent with what was observed in other studies.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="es"><![CDATA[Covid-19]]></kwd>
<kwd lng="es"><![CDATA[contaminación del aire]]></kwd>
<kwd lng="es"><![CDATA[mortalidad]]></kwd>
<kwd lng="es"><![CDATA[óxidos de nitrógeno]]></kwd>
<kwd lng="es"><![CDATA[material particulado]]></kwd>
<kwd lng="en"><![CDATA[coronavirus infections]]></kwd>
<kwd lng="en"><![CDATA[Covid-19]]></kwd>
<kwd lng="en"><![CDATA[air pollution]]></kwd>
<kwd lng="en"><![CDATA[mortality]]></kwd>
<kwd lng="en"><![CDATA[particulate matter]]></kwd>
</kwd-group>
</article-meta>
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