<?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>0138-6557</journal-id>
<journal-title><![CDATA[Revista Cubana de Medicina Militar]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. cuban. med. mil.]]></abbrev-journal-title>
<issn>0138-6557</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0138-65572023000100006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Uso de anticonceptivos y conocimiento del periodo fértil del ciclo menstrual en adolescentes]]></article-title>
<article-title xml:lang="en"><![CDATA[Use of contraceptives and knowledge of the fertile period of the menstrual cycle in adolescents]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vela Sosa]]></surname>
<given-names><![CDATA[Maria Angela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Liñan-Bermudez]]></surname>
<given-names><![CDATA[Alexandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barja-Ore]]></surname>
<given-names><![CDATA[John]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Privada del Norte  ]]></institution>
<addr-line><![CDATA[ Lima]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Univesidad Nacional Mayor de San Marcos  ]]></institution>
<addr-line><![CDATA[ Lima]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>52</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0138-65572023000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0138-65572023000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0138-65572023000100006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La comprensión de los cambios fisiológicos que se presentan en las mujeres adolescentes son fundamentales para el cuidado de su salud sexual. Esto favorece un comportamiento anticonceptivo orientado a la elección de métodos seguros y eficaces.  Objetivo:  Establecer la asociación entre el uso de métodos anticonceptivos y el conocimiento del periodo fértil del ciclo menstrual en adolescentes peruanas.  Métodos: Estudio transversal basado en el análisis secundario de la Encuesta Demográfica y de Salud Familiar del año 2021. La muestra fue de 717 de mujeres adolescentes con registro completo en las bases de datos. Se calcularon recuentos ponderados, no ponderados y se aplicó la prueba ji cuadrado con un 95 % de nivel de confianza.  Resultados: El 19 % de las adolescentes reconocen el periodo fértil del ciclo menstrual y 6,3 % refirió que este periodo sucede durante la menstruación. El 80,8 % de las mujeres que cursan la adolescencia temprana, no conocen el momento del periodo. Respecto al uso de anticonceptivos, el 21,5 % era usuaria de preservativos y 16,3 % de inyectables; no obstante, 47 % señaló que no utilizaban ningún anticonceptivo. El 53,5 % de las adolescentes en etapa tardía indicaron que sí utilizan anticonceptivos. Entre las que son usuarias de estos métodos, 86,3 % no reconocen el periodo fértil.  Conclusiones: En las adolescentes, el uso de métodos anticonceptivos no se asocia de manera significativa con el conocimiento que tienen acerca del periodo fértil del ciclo menstrual.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: The understanding of the physiological changes that occur in adolescent women are essential for the care of their sexual health. Thus, this favors a contraceptive behavior oriented to the choice of safe and effective methods.  Objective: To establish the association between the use of contraceptive methods and the knowledge of the fertile period of the menstrual cycle in Peruvian adolescents.  Methods: Cross-sectional study based on the secondary analysis of the 2021 Demographic and Family Health Survey. The sample consisted of 717 adolescent women with complete registration in the databases. Weighted and unweighted counts were calculated; and the Chi square test was applied at a 95% confidence level.  Results: 19% of adolescents recognize the fertile period of the menstrual cycle and 6.3% reported that this period occurs during menstruation. In addition, 80.8% of women in early adolescence do not know the time of their period. Regarding the use of contraceptives, 21.5% were users of condoms and 16.3% of injectables; however, 47% indicated that they did not use any contraceptive. 53.5% of late-stage adolescents indicated that they do use contraceptives. Among those who are users of these methods, 86.3% do not recognize the fertile period.  Conclusions: In adolescents, the use of contraceptive methods is not significantly associated with the knowledge they have about the fertile period of the menstrual cycle.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[periodo fértil]]></kwd>
<kwd lng="es"><![CDATA[ciclo menstrual]]></kwd>
<kwd lng="es"><![CDATA[adolescente]]></kwd>
<kwd lng="es"><![CDATA[anticonceptivos]]></kwd>
<kwd lng="en"><![CDATA[fertile period]]></kwd>
<kwd lng="en"><![CDATA[menstrual cycle]]></kwd>
<kwd lng="en"><![CDATA[adolescent]]></kwd>
<kwd lng="en"><![CDATA[contraceptive agents]]></kwd>
</kwd-group>
</article-meta>
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