<?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>2521-2281</journal-id>
<journal-title><![CDATA[Medicina clínica y social]]></journal-title>
<abbrev-journal-title><![CDATA[Med. clín. soc.]]></abbrev-journal-title>
<issn>2521-2281</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Médicas, Filial de Santa Rosa del Aguaray, Cátedra de Socioantropología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2521-22812024000200213</article-id>
<article-id pub-id-type="doi">10.52379/mcs.v8i2.407</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores asociados a la duración de la lactancia materna en niños menores de 2 años en el Perú 2021-2022]]></article-title>
<article-title xml:lang="en"><![CDATA[Factors associated with the duration of breastfeeding in children under 2 years of age in Peru 2021-2022]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabrejo]]></surname>
<given-names><![CDATA[Mirella Zorrilla]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[Rubén Espinoza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Científica del Sur  ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Peru</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<volume>8</volume>
<numero>2</numero>
<fpage>213</fpage>
<lpage>221</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2521-22812024000200213&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2521-22812024000200213&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2521-22812024000200213&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La duración de la lactancia materna es crucial para la salud infantil, sin embargo, la prevalencia ha disminuido en los últimos años, situando a los niños en una población de riesgo.  Objetivo:  Determinar los factores asociados a la duración de la lactancia materna en niños menores de 2 años en el Perú 2021-2022.  Metodología:  Estudio analítico transversal, a través del análisis secundario de datos de la Encuesta Demográfica y de Salud Familiar (ENDES) del año 2021 y 2022. El tamaño muestral fue de 4951 niños/niñas con sus respectivas madres. Se evaluaron factores infantiles y maternos utilizando el Estadístico F corregida para el análisis bivariado con una significancia estadística p&lt;0,05 y un intervalo de confianza al 95%. Finalmente, para medir la asociación se calculó la razón de prevalencia cruda (RPc) y la razón de prevalencia ajustada (RPa) mediante la Regresión de Poisson con varianza robusta.  Resultados:  El 85,3% tuvo una duración de 0-6 meses y solo el 14,7% tiene una duración hasta los 23 meses. El no contacto piel a piel precoz bebe-madre (p &lt;0,01) (RPa 1,19) y el consumo de bebidas diferentes a la leche materna los primeros 3 días de nacido (p &lt;0,01) (RPa 0,66) se asociaron con una duración hasta los 6 meses de lactancia materna. Las madres adolescentes tuvieron un 30,7% de duración de lactancia materna de 6 meses (p&lt;0,01) (RPa 2,49), por el contrario, el lugar de residencia rural, el grado no superior y un menor ingreso económico permiten una lactancia materna por más de 6 meses.  Discusión:  Los resultados asocian no recibir contacto piel a piel precoz bebe-madre, edad materna igual o menor de 18 años, grado superior, lugar de residencia urbano y mayor ingreso económico con una menor duración de lactancia materna en niños menores de 2 años.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The duration of breastfeeding is crucial for child health; however, the prevalence has decreased in recent years, placing children in a population at risk.  Objective: To determine the factors associated with the duration of breastfeeding in children under 2 years of age in Peru 2021-2022.  Methodology: Cross-sectional analytical study, through the secondary analysis of data from the Demographic and Family Health Survey (ENDES) of 2021 and 2022. The sample size was 4951 children with their respective mothers. Infant and maternal factors were evaluated using the F-statistic corrected for bivariate analysis with a statistical significance of p&lt;0.05 and a 95% confidence interval. Finally, to measure the association, the crude prevalence ratio (cPR) and the adjusted prevalence ratio (aPR) were calculated using Poisson regression with robust variance.  Results: 85.3% had a duration of 0-6 months and only 14.7% had a duration of up to 23 months. Early baby-mother skin-to-skin non-contact (p &lt;0.01) (aPR 1.19) and consumption of beverages other than breast milk in the first 3 days of birth (p &lt;0.01) (aPR 0.66) were associated with a duration of breastfeeding up to 6 months. Adolescent mothers had a 30.7% duration of breastfeeding of 6 months (p&lt;0.01) (aPR 2.49), on the contrary, the place of rural residence, the non-higher grade and a lower economic income allow breastfeeding for more than 6 months.  Discussion:  The results were associated with not receiving early skin-to-skin contact between the baby and the mother, maternal age equal to or less than 18 years, higher grade, urban place of residence and higher economic income with a shorter duration of breastfeeding in children under 2 years of age.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[lactancia materna]]></kwd>
<kwd lng="es"><![CDATA[niños]]></kwd>
<kwd lng="es"><![CDATA[fórmula infantil]]></kwd>
<kwd lng="es"><![CDATA[método de cuidado madre canguro]]></kwd>
<kwd lng="es"><![CDATA[edad materna.]]></kwd>
<kwd lng="en"><![CDATA[breastfeeding]]></kwd>
<kwd lng="en"><![CDATA[children]]></kwd>
<kwd lng="en"><![CDATA[infant formula]]></kwd>
<kwd lng="en"><![CDATA[kangaroo-mother care method]]></kwd>
<kwd lng="en"><![CDATA[maternal age.]]></kwd>
</kwd-group>
</article-meta>
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