<?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>2007-0705</journal-id>
<journal-title><![CDATA[Nova scientia]]></journal-title>
<abbrev-journal-title><![CDATA[Nova scientia]]></abbrev-journal-title>
<issn>2007-0705</issn>
<publisher>
<publisher-name><![CDATA[Universidad de La Salle Bajío A. C., Coordinación de Investigación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-07052017000200615</article-id>
<article-id pub-id-type="doi">10.21640/ns.v9i19.849</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Asociación entre múltiples parejas sexuales y el inicio temprano de relaciones sexuales coitales en estudiantes universitarios]]></article-title>
<article-title xml:lang="en"><![CDATA[Relationship between multiple sexual partners and the early sexual intercourse initiation in college students]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hurtado de Mendoza Zabalgoitia]]></surname>
<given-names><![CDATA[María Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Veytia López]]></surname>
<given-names><![CDATA[Marcela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guadarrama Guadarrama]]></surname>
<given-names><![CDATA[Rosalinda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Forteza]]></surname>
<given-names><![CDATA[Catalina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Iztacala ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de México Centro de Investigación en Ciencias Médicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz Dirección de Investigaciones Epidemiológicas y Psicosociales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>9</volume>
<numero>19</numero>
<fpage>615</fpage>
<lpage>634</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-07052017000200615&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-07052017000200615&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-07052017000200615&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Los estudiantes universitarios tienen relaciones sexuales coitales a temprana edad con múltiples parejas sexuales, practicando diversas modalidades como: sexo casual, transaccional y grupal, que los hace vulnerables a embarazarse y adquirir infecciones de transmisión sexual.  Método: Se llevó a cabo un estudio transversal a 1854 estudiantes universitarios del área de la salud, (medicina, enfermería, odontología y psicología) de dos universidades públicas del Estado de México, entre 18 y 24 años, estableciendo asociación por medio de X 2 con el inicio temprano de relaciones sexuales coitales, el número de parejas sexuales, llevar a cabo sexo grupal, transaccional y casual.  Resultados: Los hombres iniciaron relaciones sexuales coitales a menor edad que las mujeres. En los hombres se observa asociación (p=.001) entre el inicio temprano de relaciones sexuales coitales con llevar a cabo sexo casual, transaccional y grupal. En las mujeres se asocia el inicio temprano de relaciones sexuales con sexo casual y con mayor número de parejas sexuales con diferencias estadísticamente significativas.  Conclusión: Los estudiantes que tienen relaciones sexuales coitales a temprana edad, tienen más parejas sexuales y llevan a cabo sexo casual, transaccional y grupal que los hace vulnerables a adquirir infecciones de transmisión sexual así como embarazos no planeados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: College students who engage in sexual intercourse at an early age have more sexual partners, and are more likely to engage in risky sexual behaviors. These make them more vulnerable to sexually transmitted diseases and unintended pregnancies.  Method: A cross-sectional study was performed on 1854 university students between the ages of 18 and 24 from the health care areas (medicine, nursing, dentistry, and psychology) at two public universities in the State of Mexico. Correlations were established through X² among the early onset of sexual intercourse, the number of sexual partners, group sex, transactional sex, and casual sex.  Results: Men initiate sexual intercourse at younger ages than women. In men, there are statistically significant (p=.001) correlations between the early onset of sexual intercourse and casual, transactional and group sex. In women, there are statistically significant correlations between the early onset of sexual intercourse and casual sex, and having more than five sexual partners.  Conclusion: Students who engage in sexual intercourse at an early age have more sexual partners, and are more likely to engage in casual, transactional and group sex. These risky sexual behaviors make them more vulnerable to sexually transmitted diseases and unintended pregnancies.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[inicio de relaciones sexuales coitales]]></kwd>
<kwd lng="es"><![CDATA[múltiples parejas]]></kwd>
<kwd lng="es"><![CDATA[sexo casual]]></kwd>
<kwd lng="es"><![CDATA[sexo grupal]]></kwd>
<kwd lng="es"><![CDATA[sexo transaccional]]></kwd>
<kwd lng="en"><![CDATA[early sexual intercourse]]></kwd>
<kwd lng="en"><![CDATA[multiple partners]]></kwd>
<kwd lng="en"><![CDATA[casual sex]]></kwd>
<kwd lng="en"><![CDATA[transactional sex]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Prevalence and correlates of exchanging sex for money (gift) among private college students in Bahir Dar city]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alamrew]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Awoke]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Fikadie]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Shimekaw]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Northwest Ethiopia, Clinical Medicine Research]]></source>
<year>2013</year>
<volume>2</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>126-34</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Reasons for delaying or engaging in early sexual initiation among adolescents in Nigeria]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ankomah]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mamman-daura]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Omoregie]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Anyanti]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Adolescent Health. Medicine and Therapeutics]]></source>
<year>2011</year>
<volume>2</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>75-84</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Perfil de personalidad de estudiantes universitarios de la carrera de Psicología. El caso de la Facultad de Estudios Superiores Iztacala]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aragón]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Perfiles Educativos]]></source>
<year>2011</year>
<volume>33</volume>
<numero>133</numero>
<issue>133</issue>
<page-range>69-87</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Características de personalidad del estudiante de la carrera de Cirujano Dentista de la FES Iztacala, UNAM]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aragón]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Odontológica Mexicana]]></source>
<year>2014</year>
<volume>18</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>19-26</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Comportamiento sexual y erotismo en estudiantes universitarios, Cali, Colombia]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Vásquez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Dueñas]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Tejada]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Colombia Médica]]></source>
<year>2011</year>
<volume>42</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>309-18</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Aspectos Psicosociales de la salud sexual y reproductiva en estudiantes universitarios]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baiz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Pereyra]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Salud &amp; Sociedad]]></source>
<year>2016</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>180-95</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[To Hook Up or Date: Which Gender Benefits?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bradshaw]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Kahn]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Saville]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sex Roles]]></source>
<year>2010</year>
<volume>62</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>661-9</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Conductas Sexuales alternas y permisividad en jóvenes universitarios]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cañizo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Salinas]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Enseñanza e Investigación en Psicología]]></source>
<year>2010</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>285-309</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chatterji]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Murray]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[London]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Anglewicz]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[The factors influencing transactional sex among young men and women in 12 Sub-Saharan African countries]]></source>
<year>2004</year>
<publisher-loc><![CDATA[Sub-Saharan Africa ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="">
<article-title xml:lang=""><![CDATA[Amor y sexualidad en jóvenes mexicanos del siglo XX, en la vida amorosa, sexual y familiar en México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Collignon]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
</person-group>
<source><![CDATA[Herencias, discursos y prácticas]]></source>
<year>2010</year>
<publisher-loc><![CDATA[Guadalajara, México ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Age at sexual initiation and number of sexual partners in the female Spanish population Results from the AFRODITA survey]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Sanjosé]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Obstet Gynecol Reprod. Biol.]]></source>
<year>2008</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>234-0</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Di Cesare]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Patrones emergentes en la fecundidad y la salud reproductiva y sus vínculos con la pobreza en América Latina y el Caribe, serie Población y Desarrollo]]></source>
<year>2007</year>
<numero>72</numero>
<issue>72</issue>
<publisher-loc><![CDATA[Santiago de Chile ]]></publisher-loc>
<publisher-name><![CDATA[CEPAL]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Sexual coercion context and psychosocial correlates among diverse males]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[French]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Tilghman]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Malebranche]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Psychology of Men &amp; Masculinity]]></source>
<year>2015</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>42-53</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Group sex events and HIV/STI risk in an urban network]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Friedman]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bolyard]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Maslow]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandoval]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mateu-Gelabert]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Krauss]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Aral]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Acquir Immune Defic Syndr]]></source>
<year>2008</year>
<volume>49</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>440-6</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Sexual Hookup Culture: A Review]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Reiber]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Massey]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Merriwether]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[American Psychological Association]]></source>
<year>2012</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>161-76</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Percepciones de VIH/sida y parejas sexuales simultáneas: un estudio de biografías sexuales mexicanas]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gayet]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Juárez]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Caballero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bozon]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Papeles de Población]]></source>
<year>2011</year>
<volume>17</volume>
<numero>68</numero>
<issue>68</issue>
<page-range>9-40</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Calendario de inicio sexual en México. Comparación entre encuestas nacionales y tendencias en el tiempo]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gayet]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Salud Pública de México]]></source>
<year>2014</year>
<volume>55</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>638-47</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Students by day, strippers by night: transactional sexuality among Indiana college students]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Girresch]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of History and Social Science]]></source>
<year>2012</year>
<page-range>2-27</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="">
<source><![CDATA[Glosario de orientaciones terminológicas de ONUSIDA]]></source>
<year>2011</year>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Molina]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Zamberlin]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Factores relacionados con el embarazo y la maternidad en menores de 15 años]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Lima Perú ]]></publisher-loc>
<publisher-name><![CDATA[Federación Latinoamericana de Sociedades de Obstetricia y Ginecología (FLASOG)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Predictores de conductas sexuales de riesgo entre adolescentes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Castellá]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Carlotto]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Interamerican Journal of Psychology]]></source>
<year>2007</year>
<volume>41</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>161-6</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Factores asociados al inicio de la actividad sexual en adolescentes de Tuluá, Colombia]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holguín]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Esquivel]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Daraviña]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Acuña]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev Chil Obstet Ginecol]]></source>
<year>2013</year>
<volume>78</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>209-19</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Infecciones de transmisión sexual en la población femenina de estudiantes universitarias]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hurtado de Mendoza]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Olvera]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista electrónica de psicología Iztacala]]></source>
<year>2012</year>
<volume>15</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1156-71</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="">
<collab>Instituto Nacional de Estadística y Geografía INEGI</collab>
<source><![CDATA[Estadísticas a Propósito del día Internacional de la Juventud]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[US Black college women&#8217;s sexual health in hookup culture: intersections of race and gender]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jenkins]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Tanner]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Culture, Health &amp; Sexuality]]></source>
<year>2016</year>
<volume>18</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1-14</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cambio en las conductas de riesgo y salud en estudiantes universitarios argentinos a lo largo del periodo educativo]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Intra]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rosales-Nieto]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[International Journal of Psychology and Psychological Therapy]]></source>
<year>2011</year>
<volume>11</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>139-47</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Prevalencia de consumo de drogas en estudiantes universitarios que cursan primer y cuarto año]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Del Valle]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Belmar]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Orellana]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Soto]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ivanovic]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Med. Chile]]></source>
<year>2011</year>
<volume>139</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1573-80</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Las prácticas sexuales de riesgo al VIH en población universitaria]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Arboleda]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Segunda]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Salud Pública]]></source>
<year>2014</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>27-39</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Sexual debut and HIV-related sexual risk-taking by birth cohort among men who have sex with men in the United States]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nelson]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Gamarel]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Pantalone]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Carey]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Simoni]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[AIDS and Behavior]]></source>
<year>2016</year>
<volume>20</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2286-95</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Young age at first intercourse and risk-taking behaviours-a study of nearly 65 000 women in four Nordic countries]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olesen]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Jensen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Nygard]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Triggvadottir]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Sparén]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Bo]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Kai-Li]]></surname>
</name>
<name>
<surname><![CDATA[Kajer]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Eur J Public Health.]]></source>
<year>2012</year>
<volume>22</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>220-2024</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Habilidades para la vida y uso de anticoncepción por tipo de pareja sexual en Adolescentes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Enseñanza e Investigación en Psicología]]></source>
<year>2013</year>
<volume>18</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>35-49</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Relaciones con múltiples parejas en mujeres universitarias: estudio comparativo en dos instituciones del noroeste de México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Piña]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Dávila]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lozano]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Carrillo]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Colombia Médica]]></source>
<year>2009</year>
<volume>40</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>51-60</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Predictores del comportamiento sexual con múltiples parejas en estudiantes de educación superior: un análisis por género]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Piña]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rivera]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Acta Colombiana de Psicología]]></source>
<year>2009</year>
<volume>12</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>53-65</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="">
<collab>Presencia de mujeres y hombres en la UNAM</collab>
<source><![CDATA[Una radiografía]]></source>
<year>2012</year>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Conducta sexual de riesgo en los estudiantes de licenciatura de la Universidad Intercontinental]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pulido]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Carazo]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Orta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Coronel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Vera]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Intercontinental de Psicología y Educación]]></source>
<year>2011</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>11-27</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Conocimientos y prácticas en salud sexual y reproductiva de adolescentes escolares en un municipio colombiano]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rengifo-Reina]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Córdoba-Espinal]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Serrano-Rodríguez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Salud Publica]]></source>
<year>2012</year>
<volume>14</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>558-69</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Infecciones de transmisión sexual un problema de salud pública en el mundo y en Venezuela]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Comunidad y Salud]]></source>
<year>2016</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>63-71</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Early sexual debut: voluntary or coerced? Evidence from longitudinal data in South Africa - the Birth to Twenty Plus study]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Richter]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Mabaso]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramjith]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Norris]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[S Afr Med J]]></source>
<year>2015</year>
<volume>105</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>304-7</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Estrategia educativa sobre promoción en salud sexual y reproductiva para adolescentes y jóvenes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanabria]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Contreras]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Perdomo]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Cubana de Salud Pública]]></source>
<year>2013</year>
<volume>39</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>161-74</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Sexo transaccional en usuarios de drogas como factor de riesgo para infecciones de transmisión sexual]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosales]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[De Alba]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Sexología y sociedad]]></source>
<year>2014</year>
<volume>20</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>137-49</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Risky sexual behavior for STIs/HIV infection among Alkan University College students in Ethiopia]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sendo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bedada]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Science Postprint]]></source>
<year>2014</year>
<volume>1</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>25-31</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Perception of risk of HIV and sexual risk behaviors among University students: implication for planning interventions]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shiferaw]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Alemu]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Assefa]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tesfaye]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gibermedhin]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Amare]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[BioMed Central]]></source>
<year>2014</year>
<volume>7</volume>
<numero>162</numero>
<issue>162</issue>
<page-range>2-8</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Percepción de los estudiantes de medicina sobre el uso de métodos anticonceptivos]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Solano]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Catañeda]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Universidad Autónoma del Estado de Hidalgo]]></source>
<year>2016</year>
<volume>5</volume>
<numero>9</numero>
<issue>9</issue>
</nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Early sexual initiation and multiple sexual partners among Vietnamese women: analysis from the multiple indicator cluster survey]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thai]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[OH]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Heo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Van]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Van]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Choi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ngoc]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Glob Health Action]]></source>
<year>2016</year>
<volume>9</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-25</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Conductas sexuales de riesgo en estudiantes universitarios de la ciudad de Cali-Colombia]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uribe]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Orcasita]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Virtual universitad Católica del Norte]]></source>
<year>2009</year>
<volume>27</volume>
<page-range>1-31</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Percepciones sobre el uso del condón y la sexualidad entre jóvenes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uribe]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Amador]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Zacarias]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Villarreal]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev.latinoam.cienc.soc.niñez juv]]></source>
<year>2012</year>
<volume>10</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>481-94</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Timing of first sexual intercourse and young adult Health Outcomes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vasilenko]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kugler]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Cara Rice]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Adolescent Health]]></source>
<year>2016</year>
<volume>58</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Los jóvenes población vulnerable al VIH/SIDA]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Velásquez]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Bedoya]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Medicina UPB]]></source>
<year>2010</year>
<volume>29</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>144-54</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
