<?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>0186-4866</journal-id>
<journal-title><![CDATA[Medicina interna de México]]></journal-title>
<abbrev-journal-title><![CDATA[Med. interna Méx.]]></abbrev-journal-title>
<issn>0186-4866</issn>
<publisher>
<publisher-name><![CDATA[Edición y Farmacia S.A. de C.V.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0186-48662019000300349</article-id>
<article-id pub-id-type="doi">10.24245/mim.v35i3.2306</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El índice neutrófilo/linfocito como predictor de morbilidad y mortalidad en neumonía por influenza]]></article-title>
<article-title xml:lang="en"><![CDATA[The neutrophil/lymphocyte index as a predictor of morbidity and mortality in pneumonia due to influenza]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamora-Cervantes]]></surname>
<given-names><![CDATA[Laura Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lozano-Nuevo]]></surname>
<given-names><![CDATA[José Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benítez-Maldonado]]></surname>
<given-names><![CDATA[Daniel R]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Islas]]></surname>
<given-names><![CDATA[Inés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Portillo]]></surname>
<given-names><![CDATA[Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rubio-Guerra]]></surname>
<given-names><![CDATA[Alberto Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arista-Olvera]]></surname>
<given-names><![CDATA[Nayeli Xendali]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Islas]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Villa]]></surname>
<given-names><![CDATA[María Leslye]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-González]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Secretaría de Salud Hospital General Ticomán ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Secretaría de Salud Hospital General Ticomán ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Secretaría de Salud Hospital General Ticomán ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Secretaría de Salud Hospital General Ticomán servicio de Cardiología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Secretaría de Salud Hospital General Dr. Enrique Cabrera Unidad de Cuidados Intensivos]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
</aff>
<aff id="Af6">
<institution><![CDATA[,Secretaría de Salud Hospital General Dr. Rubén Leñero Unidad de Cuidados Intensivos]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>3</numero>
<fpage>349</fpage>
<lpage>354</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0186-48662019000300349&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0186-48662019000300349&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0186-48662019000300349&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  OBJETIVO: Demostrar si el índice neutrófilo/linfocito predice la mortalidad en pacientes con neumonía tipo influenza.  MATERIAL Y MÉTODO:  Estudio de casos y controles, observacional, analítico, transversal, retrospectivo y retrolectivo que incluyó pacientes con neumonía por influenza que padecieron neumonía aguda grave de 2009 a 2017. Se calculó APACHE II, SMART COP y el índice neutrófilo/linfocito (INL). Se determinó supervivencia mediante Kaplan y Meier, para la asociación entre INL y mortalidad, APACHE II, SMART COP y comorbilidades se usó &#967;2 y razón de momios (RM), así como correlación entre APACHE II, SMART COP e INL.  RESULTADOS: Se incluyeron 69 pacientes. La RM entre el INL y la mortalidad fue de 0.174 (p = 0.533; IC95% 0.274 a 2.08). Hubo asociación significativa entre el INL y componentes del síndrome metabólico en pacientes vivos. No hubo diferencia en la supervivencia entre INL mayor o menor de 7. Correlación positiva entre APACHE II e INL de 0.4295 (p = 0.0002; IC95% 0.00 a 0.063).  CONCLUSIONES: Existe asociación entre el INL y el síndrome metabólico en pacientes vivos, así como correlación positiva con APACHE II. No hay asociación entre el INL y mortalidad. El punto de corte del INL se desplazó cuatro puntos comparado con otras poblaciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  OBJECTIVE: To demonstrate if neutrophil/lymphocyte index predicts mortality in patients with influenza-like pneumonia.  MATERIAL AND METHOD: A case-control, observational, analytical, cross-sectional, retrospective and retrolective study with patients with influenza like pneumonia who developed severe acute pneumonia from 2009 to 2017. APACHE II, SMART COP and neutrophil lymphocyte index (INL) were calculated. Survival was determined by Kaplan and Meier, for the association between INL and mortality, APACHE II, SMART COP and comorbidities was used &#967;2 and odds ratio (OR), as well as correlation between APACHE II, SMART COP and INL.  RESULTS: There were included 69 patients. OR between the INL and mortality was of 0.174 (p = 0.533, IC95% 0.274-2.08). There was significant association between INL and components of the metabolic syndrome in living patients. There was no difference in survival between INL greater or less than 7. Positive correlation between APACHE II and INL of 0.4295 (p = 0.0002, IC95% 0.00 to 0.063).  CONCLUSIONS: There is an association between INL and metabolic syndrome in liv- ing patients, as well as a positive correlation with APACHE II. There is no association between INL and mortality. The cutoff point of the INL shifted 4 points compared to other populations.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Neutrófilos]]></kwd>
<kwd lng="es"><![CDATA[linfocitos]]></kwd>
<kwd lng="es"><![CDATA[influenza]]></kwd>
<kwd lng="es"><![CDATA[neumonía]]></kwd>
<kwd lng="es"><![CDATA[síndrome metabólico]]></kwd>
<kwd lng="es"><![CDATA[APACHE II]]></kwd>
<kwd lng="en"><![CDATA[Neutrophil]]></kwd>
<kwd lng="en"><![CDATA[Lymphocyte]]></kwd>
<kwd lng="en"><![CDATA[Influenza]]></kwd>
<kwd lng="en"><![CDATA[Pneumonia]]></kwd>
<kwd lng="en"><![CDATA[Metabolic syndrome]]></kwd>
<kwd lng="en"><![CDATA[APACHE II]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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