<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "journalpublishing3.dtd">
 <article article-type="research-article" dtd-version="3.0" xml:lang="en" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
   <journal-meta>
    <journal-id journal-id-type="publisher-id">SM</journal-id>
    <journal-title-group>
     <journal-title>Salud Mental</journal-title>
     <abbrev-journal-title>sm</abbrev-journal-title>
    </journal-title-group>
    <issn pub-type="epub">0185-3325</issn>
    <publisher>
     <publisher-name>Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz</publisher-name>
    </publisher>
   </journal-meta>
   <article-meta>
    <article-id pub-id-type="publisher-id">SM4480</article-id>
    <article-id pub-id-type="doi">10.17711/SM.0185-3325.2017.025</article-id>
    <article-categories>
     <subj-group subj-group-type="heading">
      <subject>Original article</subject>
     </subj-group>
    </article-categories>
    <title-group>
     <article-title>Non-suicidal self-injuries in a sample of Mexican university students</article-title>
     <trans-title-group xml:lang="es">
      <trans-title>Non-suicidal self-injuries in a sample of Mexican university students</trans-title>
     </trans-title-group>
     <alt-title alt-title-type="running-head">Non-suicidal self-injuries in a sample of Mexican university students</alt-title>
    </title-group>
    <contrib-group>
     <contrib contrib-type="author">
      <name>
       <surname>Everardo</surname>
       <given-names>Castro Silva</given-names>
      </name>
      <xref ref-type="aff" rid="AF0001">1</xref>
     </contrib>
     <contrib contrib-type="author">
      <name>
       <surname>Corina</surname>
       <given-names>Benjet</given-names>
      </name>
      <xref ref-type="aff" rid="AF0002">2</xref>
     </contrib>
     <contrib contrib-type="author">
      <name>
       <surname>Francisco</surname>
       <given-names>Juárez García</given-names>
      </name>
      <xref ref-type="aff" rid="AF0002">2</xref>
     </contrib>
     <contrib contrib-type="author">
      <name>
       <surname>Samuel</surname>
       <given-names>Jurado Cárdenas</given-names>
      </name>
      <xref ref-type="aff" rid="AF0001">1</xref>
     </contrib>
     <contrib contrib-type="author">
      <name>
       <surname>María Emilia</surname>
       <given-names>Lucio Gómez-Maqueo</given-names>
      </name>
      <xref ref-type="aff" rid="AF0001">1</xref>
     </contrib>
     <contrib contrib-type="author">
      <name>
       <surname>Alejandra</surname>
       <given-names>Valencia Cruz</given-names>
      </name>
      <xref ref-type="aff" rid="AF0001">1</xref>
     </contrib>
    </contrib-group>
    <aff id="AF0001">
     <label>1</label>
     Facultad de Psicología, Universidad Nacional Autónoma de México, Ciudad de México, México.
    </aff>
    <aff id="AF0002">
     <label>2</label>
     Dirección de Investigaciones Epidemiológicas y Psicosociales, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Ciudad de México, México.
    </aff>
    <author-notes>
     <corresp id="cor1">
      Correspondence: Everardo Castro Silva Facultad de Psicología, Universidad Nacional Autónoma de México. Av. Universidad 3004, Copilco-Universidad, Ciudad Universitaria, C.P. 04510, Ciudad de México, México. Phone: +52 (55) 1385-5035 Email: curgos@hotmail.com
      <email xlink:href="curgos@hotmail.com">curgos@hotmail.com</email>
     </corresp>
    </author-notes>
    <pub-date pub-type="epub-ppub">
     <month>09</month>
     <year>2017</year>
    </pub-date>
    <volume>40</volume>
    <issue>5</issue>
    <fpage>191</fpage>
    <lpage>200</lpage>
    <history>
     <date date-type="received">
      <day>16</day>
      <month>08</month>
      <year>2016</year>
     </date>
     <date date-type="accepted">
      <day>07</day>
      <month>09</month>
      <year>2017</year>
     </date>
     <date date-type="Publicado on-line">
      <day>19</day>
      <month>10</month>
      <year>2017</year>
     </date>
    </history>
    <permissions>
     <copyright-statement>© 2001-2015. Todos los Derechos Reservados a Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz</copyright-statement>
     <copyright-year>2017</copyright-year>
     <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">
      <license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial (by-nc) Spain 3.0 License.</license-p>
     </license>
    </permissions>
    <abstract xml:lang="en">Introduction. Non-suicidal self-injuries (NSSI) are a worldwide health problem that affects principally young people, and can impact negatively the mental and physical health of those that self-injure. Objective. To examine the frequency of NSSI in 564 undergraduate students (132 male, 432 female) from Mexico City and the association of NSSI with depressive symptoms, anxiety, impulsivity, self-efficacy, and emotion regulation. Method. A convenience sample of 564 undergraduate students (aged 17-26 years) from eight universities in the Mexico City metropolitan area completed a survey in their classrooms. Results. Of the total sample, 30.9% had experimented at some point in their lifetime with NSSI on one to four occasions, while 26.9% had recurrent NSSI (i.e., five or more occasions). Nearly eleven percent self-injured in the prior 12 months. The NSSI most often reported among those who self-injured was cutting oneself (48.0%). Recurrent self-injurers reported higher levels of depression and impulsivity, and less self-efficacy than those who had experimented with such behaviors or without any lifetime NSSI. While 54.4% perceived the need for professional help, only 18.1% sought professional services. Discussion and conclusion. NSSI is a hidden problem in the college population in Mexico City which needs to be addressed by university administrators and mental health professionals. Depressive symptomatology, impulsivity, and self-efficacy are factors that should be considered when developing preventive intervention strategies.</abstract>
    <trans-abstract xml:lang="es">Introducci&oacute;n. Las autolesiones no suicidas (ANS) son un problema mundial de salud que afecta principalmente a j&oacute;venes, y puede impactar de manera negativa la salud mental y f&iacute;sica de la persona que se autolesiona. Objetivo. Examinar la frecuencia de ANS en 564 estudiantes de licenciatura (132 hombres, 432 mujeres) de la Ciudad de M&eacute;xico y la asociaci&oacute;n de las ANS con s&iacute;ntomas depresivos, ansiedad, impulsividad, autoeficacia y regulaci&oacute;n emocional. M&eacute;todo. Una muestra de conveniencia de 564 estudiantes universitarios (edades 17-26 a&ntilde;os) de ocho universidades del &aacute;rea metropolitana de la Ciudad de M&eacute;xico complet&oacute; una encuesta en sus salones de clases. Resultados. Del total de la muestra, 30.9% se hab&iacute;an infligido ANS de manera experimental de una a cuatro ocasiones, mientras que 26.9% presentaron ANS recurrentes (cinco o m&aacute;s ocasiones) en alg&uacute;n momento en su vida. Casi once por ciento reportaron ANS en los 12 meses previos. Las ANS reportadas con mayor frecuencia entre aquellos que se autolesionaron fueron cortarse a s&iacute; mismos (48.0%). Las personas con autolesiones recurrentes reportaron mayores niveles de depresi&oacute;n e impulsividad, y menos autoeficacia que aquellas que hab&iacute;an experimentado con estos comportamientos o sin ninguna historia de ANS en su vida. Aunque 54.4% percib&iacute;an la necesidad de atenci&oacute;n, solo 18.1% buscaron servicios profesionales. Discusi&oacute;n y conclusi&oacute;n. Las ANS son una problem&aacute;tica oculta en la poblaci&oacute;n universitaria de la Ciudad de M&eacute;xico, la cual necesita ser atendida por las autoridades universitarias y los profesionales de la salud. La sintomatolog&iacute;a depresiva, impulsividad y autoeficacia son factores que se deben considerar para desarrollar estrategias preventivas.</trans-abstract>
    <kwd-group xml:lang="en">
     <kwd>Depressive symptoms</kwd>
     <kwd>anxiety</kwd>
     <kwd>mental health</kwd>
     <kwd>self-injurious behavior</kwd>
     <kwd>university students</kwd>
    </kwd-group>
    <kwd-group xml:lang="es">
     <kwd>Sintomatología depresiva</kwd>
     <kwd>ansiedad</kwd>
     <kwd>salud mental</kwd>
     <kwd>conductas autolesivas</kwd>
     <kwd>estudiantes universitarios</kwd>
    </kwd-group>
   </article-meta>
  </front>
 </article>

