<?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>1812-9528</journal-id>
<journal-title><![CDATA[Memorias del Instituto de Investigaciones en Ciencias de la Salud]]></journal-title>
<abbrev-journal-title><![CDATA[Mem. Inst. Investig. Cienc. Salud]]></abbrev-journal-title>
<issn>1812-9528</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Investigaciones en Ciencias de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1812-95282022000100039</article-id>
<article-id pub-id-type="doi">10.18004/mem.iics/1812-9528/2022.020.01.39</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio de caso control en amenaza de parto pretermino y sus factores de riesgo en gestantes en un hospital de referencia del Peru durante la pandemia COVID-19]]></article-title>
<article-title xml:lang="en"><![CDATA[Case control study on the threat of preterm delivery and its risk factors in pregnant women in a referral hospital in Peru during the COVID-19 pandemic]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Ramos]]></surname>
<given-names><![CDATA[Alfredo Jhonatan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[Horus Virú]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quezada]]></surname>
<given-names><![CDATA[Juan Carlos Roque]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Melgarejo]]></surname>
<given-names><![CDATA[Joseph Alburqueque]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Saldaña Diaz]]></surname>
<given-names><![CDATA[Claudia Veralucia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Privada San Juan Bautista Facultad de Medicina Humana ]]></institution>
<addr-line><![CDATA[Chincha ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Ricardo Palma Facultad de Medicina Humana ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional Materno Perinatal del Perú Unidad Funcional de Investigación ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>20</volume>
<numero>1</numero>
<fpage>39</fpage>
<lpage>45</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S1812-95282022000100039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S1812-95282022000100039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S1812-95282022000100039&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo del presente estudio fue determinar la relación entre la amenaza de parto pretermino y sus factores de riesgo en gestantes atendidas en un hospital de referencia del Perú durante la pandemia covid-19, con énfasis en la infección de tracto urinario. Se realizó un diseño de tipo casos y controles no emparejado, con una muestra representativa, con un tamaño muestral de 92 casos y 92 controles por muestreo probabilístico aleatorio simple, se realizó un modelo de regresión logística para la infección de tracto urinario y la amenaza de parto pretermino para el cálculo del Odds Ratio e intervalos de confianza al 95%. Se reportó una asociación para la amenaza de parto pretermino con las variables gestante añosa 3.159 (IC95% 1.66 - 6.02), menos de seis controles prenatales 3.9 (IC95% 2.084 - 7.298), paridad 0.353 (IC95% 0.180 - 0.691), antecedente de parto pretermino 2.843 (IC95% 1.253 - 5.639) e infección de tracto urinario 2.843 (IC95% 1.253 - 5.639). Se concluye que la infección de tracto urinario se asocia a la amenaza de parto pretermino en gestantes atendidas en un hospital de referencia peruano.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective of the present study was to determine the relationship between the threat of preterm birth and its risk factors in pregnant women treated at a referral hospital in Peru during the covid-19 pandemic, with emphasis on urinary tract infection. An unpaired case-control type design was carried out, with a representative sample including 92 cases and 92 controls selected by simple random probabilistic sampling. A logistic regression model was carried out for urinary tract infection and threat of preterm birth for calculating the Odds Ratio and 95% confidence intervals. An association was reported for the threat of preterm birth with the variables: elderly pregnant woman 3.159 (95% CI 1.66 - 6.02), less than six prenatal controls 3.9 (95% CI 2.084 - 7.298), parity 0.353 (95% CI 0.180 - 0.691), history of preterm birth 2843 (95% CI 1253-5639) and urinary tract infection 2843 (95% CI 1253-5639). It is concluded that urinary tract infection is associated with the threat of preterm birth in pregnant women treated in a Peruvian reference hospital.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estudios de caso-control]]></kwd>
<kwd lng="es"><![CDATA[trabajo de parto prematuro]]></kwd>
<kwd lng="es"><![CDATA[factores de riesgo]]></kwd>
<kwd lng="es"><![CDATA[gestantes]]></kwd>
<kwd lng="en"><![CDATA[case-control studies]]></kwd>
<kwd lng="en"><![CDATA[premature labor]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="en"><![CDATA[pregnant women]]></kwd>
</kwd-group>
</article-meta>
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<given-names><![CDATA[SJ]]></given-names>
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</person-group>
<article-title xml:lang=""><![CDATA[Preterm labor One syndrome, many causes]]></article-title>
<source><![CDATA[Science]]></source>
<year>2014</year>
<volume>345</volume>
<numero>6198</numero>
<issue>6198</issue>
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</back>
</article>
