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Updated: Feb 16, 2026

A Modified Trier Social Stress Test for Vulnerable Mexican American Adolescents
Published on: July 10, 2017
[Contraception in Mexican adolescents in upper secondary schools: use and unmet needs]
Aremis Villalobos1, Filipa de Castro1, Rosalba Rojas1
1Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. México.
Objective:
To describe sexual behavior and contraceptive use in adolescent students.
Materials And Methods:
National representative survey in upper secondary schools in Mexico 2014. Logistic regressions identify the factors associated with contraceptive use and unmet needs for contraception (UNC).
Results:
For male adolescents, non-contraceptive use in the last sexual relation is associated with non-contraceptive use in the sexual debut (OR=11.5; IC95%:5.6,23.4) and not recognizing effective contraceptive methods (OR=2.4;IC95%:1.04,5.5). For female adolescents, non-contraceptive use is associated with non-contraceptive use in sexual debut (OR=4.5;IC95%:2.3,8.4) and low self-efficacy towards condom use and negotiation (OR=3.1; IC95%:1.1,8.2). UNC were associated with insecure attitudes towards condom use and negotiation (OR=3.5;IC95%:1.3,9.4), non-contraceptive use in sexual debut (OR=9.0;IC95%:2.5,32.4) and use of alcohol or drugs during sexual relations (OR=3.0;IC95%:1.1,8.1).
Conclusions:
Strategies to ensure contraceptive use from sexual debut onwards are required, promoting self-efficacy and safe sex practices among adolescents.
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