The “Safer Choices” intervention: Its impact on the sexual behaviors of different subgroups of high school students

Kirby, Douglas B.; Baumler, Elizabeth; Coyle, Karin K.; Basen-Engquist, Karen; Parcel, Guy S.; Harrist, Ron; Banspach, Stephen W.

doi:10.1016/j.jadohealth.2004.02.006

« Previous Next »Journal of Adolescent Health
Volume 35, Issue 6 , Pages 442-452, December 2004

The “Safer Choices” intervention: Its impact on the sexual behaviors of different subgroups of high school students

Douglas B. Kirby, Ph.D.
- Department of Research, ETR Associates, Scotts Valley, California, USA
- Address correspondence to: Dr. Douglas Kirby, ETR Associates, 4 Carbonero Way, Scotts Valley, CA 95066–4200, USA
Elizabeth Baumler, Ph.D.
- Center for Health Promotion Research and Development, University of Texas, Houston, Texas, USA
Karin K. Coyle, Ph.D.
- Department of Research, ETR Associates, Scotts Valley, California, USA
Karen Basen-Engquist, Ph.D.
- Center for Health Promotion Research and Development, University of Texas, Houston, Texas, USA
Guy S. Parcel, Ph.D.
- Center for Health Promotion Research and Development, University of Texas, Houston, Texas, USA
Ron Harrist, Ph.D.
- Center for Health Promotion Research and Development, University of Texas, Houston, Texas, USA
Stephen W. Banspach, Ph.D.
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Accepted 4 February 2004.

Abstract

Purpose

To measure the relative impact of a school-based human immunodeficiency virus (HIV)-, sexually transmitted disease (STD)-, and pregnancy-prevention intervention on sexual risk-taking behaviors of different subgroups of students.

Methods

Twenty schools were randomly assigned to receive Safer Choices or a standard knowledge-based HIV-education program. Safer Choices was designed to reduce unprotected sex by delaying initiation of sex, reducing its frequency, or increasing condom use. Its five components included: school organization, an intensive curriculum with staff development, peer resources and school environment, parent education, and school-community linkages. A total of 3869 9th-grade students were tracked for 31 months. Results are presented for initiation of sex, frequency of unprotected sex, number of unprotected sexual partners, condom use, and contraceptive use. These results are presented separately by gender, race/ethnicity, prior sexual experience, and prior sexual risk-taking. Statistical analyses included multilevel, repeated measures logistic and Poisson regression models.

Results

Safer Choices had one or more positive behavioral effects on all subgroups. On four outcomes that could be affected by condom use, it had a greater impact on males than on females. It had greater effects on Hispanics, including a delay in sexual activity, than on other racial/ethnic groups. Its greatest overall effect was an increase in condom use among students who had engaged in unprotected sex before the intervention.

Conclusions

Safer Choices reduced one or more measures of sexual risk taking over 31 months among all groups of youth, and was especially effective with males, Hispanics, and youth who engaged in unprotected sex and thus were at higher risk for HIV, other STD infections and pregnancy.

Keywords: Sex and HIV education, Teen HIV/STD and pregnancy prevention, Sexual behavior, Gender differences, Racial/ethnic differences