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Health Improvement Project for Teens (HIP Teens)

Study Findings

Evidence by Outcome Domain and Study

Citation Sexual Activity Number of Sexual Partners Contraceptive Use STIs or HIV Pregnancy

Morrison-Beedy et al. 2013a

Morrison-Beedy et al. 2013b

Uniformly positive impacts across the outcomes examined in this domain Uniformly positive impacts across the outcomes examined in this domain A mix of positive, null, and/or adverse impacts across the outcomes examined in this domain
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Detailed Findings

CitationDetails

Morrison-Beedy et al. 2013a

Morrison-Beedy et al. 2013b

The program was evaluated with a randomized controlled trial involving sexually active girls recruited from youth development centers, adolescent health service centers, and school-based centers in New York. About half the participants were randomly assigned to receive the intervention and half were assigned to a health promotion control condition that received general health information on nutrition, breast health, and anger management. Researchers administered surveys immediately before random assignment (baseline) and at three, six, and 12 months after the intervention.

The study found that six months after the intervention ended, adolescents participating in the intervention reported a significantly lower rate of vaginal sex, a lower frequency of vaginal sex, a lower rate of unprotected vaginal sex, and fewer sexual partners. The study found no statistically significant program impacts on the frequency of unprotected vaginal sex. In addition, the study found no statistically significant program impacts on sexual behavior outcomes at the time of the follow-ups conducted three and 12 months after the intervention ended.

The study also examined program impacts on measures of pregnancy, sexually transmitted infection, and unprotected sex with a “steady” partner and “non-steady” partner. Findings for pregnancy and sexually transmitted infection were not considered for this review because the measures were assessed for only about half (51 percent) of the study sample. Findings for the measures of unprotected sex with a steady and non-steady partner were not considered for the review because they fall outside the scope of the review.

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Notes

Some study entries may include more than one citation because each citation examines a different follow-up period from the same study sample, or because each citation examines a different set of outcome measures on the same study sample. A blank cell indicates the study did not examine any outcome measures within the particular outcome domain or the findings for the outcome measures within that domain did not meet the review evidence standards.

Information on evidence of effectiveness is available only for studies that received a high or moderate rating. Read the description of the review process for more information on how these programs are identified.

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