<?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>S0036-36342018000500013</article-id>
<article-id pub-id-type="doi">10.21149/9024</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Dry eye symptoms and associated risk factors among adults aged 50 or more years in Central Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Síntomas de ojo seco y factores de riesgo asociados en adultos de 50 años y más del Centro de México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Graue-Hernández]]></surname>
<given-names><![CDATA[Enrique O]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serna-Ojeda]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada-Reyes]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navas]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arrieta-Camacho]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Corona]]></surname>
<given-names><![CDATA[Aida]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Oftalmología Conde de Valenciana Departamento de Córnea y Cirugía Refractiva ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Oftalmología Conde de Valenciana Departamento de Segmento Anterior ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto de Oftalmología Conde de Valenciana Departamento de Epidemiología Ocular y Salud Visual ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Secretaría de Salud Dirección General de Epidemiología ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2018</year>
</pub-date>
<volume>60</volume>
<numero>5</numero>
<fpage>520</fpage>
<lpage>527</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0036-36342018000500013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0036-36342018000500013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0036-36342018000500013&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  To determine the prevalence of dry eye symptoms (DES) and associated risk factors among adults in Tlaxcala, Mexico.  Materials and methods:  A cross-sectional population-based study that included 1 508 individuals aged &#8805;50 years who answered the Dry Eye Questionnaire (DEQ-5), with a score ranging between 0 and 22; the following categories were defined: no DES (&lt;6); mild-moderate DES (6 to 11) and severe DES (&#8805;12).  Results:  The prevalence of DES was 41.1% (95%CI 38.6-43.6), and was higher in women (OR=2.26, 95%IC 1.70-3.00), in individuals with smoking index of &lt;10 (OR=1.40, 95%CI 1.05-1.87) and &#8805;10 pack-years (OR=2.29, 95%CI 1.44-3.63), subjects with history of ever consuming alcohol (OR=1.31, 95%CI 1.02-1.70), and those receiving antihypertensive treatment (OR=1.29, 95%CI 1.00-1.65).  Conclusion:  Dry eye symptoms were highly prevalent in the study population and were associated with sex, smoking, alcohol consumption, and antihypertensive medications.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  Determinar la prevalencia de síntomas de ojo seco y factores de riesgo asociados en población adulta de Tlaxcala, México.  Material y métodos:  Se realizó un estudio de base poblacional con 1 508 individuos &#8805;50 años que respondieron el Dry Eye Questionnaire (DEQ-5) y se definieron las siguientes categorías: sin síntomas (&lt;6); síntomas leve-moderado (6 a11) y síntomas severos (&#8805;12).  Resultados:  La prevalencia de síntomas de ojo seco fue de 41.1% (IC95% 38.6-43.6); fue mayor en mujeres (OR=2.26, IC95% 1.70-3.00), en individuos con índice de tabaquismo &lt;10 (OR=1.40, IC95% 1.05-1.87) y &#8805;10 paquetes-año (OR=2.29, IC95% 1.44-3.63), en sujetos con historia de consumo de alcohol (OR=1.31, IC95%1.02-1.70) y en aquellos con tratamiento antihipertensivo (OR=1.29, IC95% 1.00-1.65).  Conclusión:  La frecuencia de síntomas de ojo seco fue altamente prevalente en la población de estudio y se asoció con sexo, tabaquismo, consumo de alcohol y medicamentos antihipertensivos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[dry eye symptoms]]></kwd>
<kwd lng="en"><![CDATA[5-item Dry Eye Questionnaire]]></kwd>
<kwd lng="en"><![CDATA[prevalence]]></kwd>
<kwd lng="es"><![CDATA[síntomas de ojo seco]]></kwd>
<kwd lng="es"><![CDATA[cuestionario de ojo seco de 5 ítems]]></kwd>
<kwd lng="es"><![CDATA[prevalencia]]></kwd>
</kwd-group>
</article-meta>
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