5/31/2023 0 Comments Reduce mathematicaMost studies (76%) included multiple follow-ups, with sample sizes ranging from 62 to 5,244. Randomized controlled trials accounted for the large majority (87%) of included studies. ![]() Most studies had mixed-gender and predominately African-American research samples (70% and 51%, respectively). The studies examined a range of programs delivered in diverse settings. Fourth, for studies that passed the quality assessment, the review team extracted and analyzed information on the research design, study sample, evaluation setting, and program impacts.Ī total of 88 studies met the review criteria for study quality and were included in the data extraction and analysis. Third, studies were assessed by teams of two trained reviewers for the quality and execution of their research designs. Second, identified studies were screened against prespecified eligibility criteria. ![]() ![]() First, multiple literature search strategies were used to identify relevant studies released from 1989 through January 2011. This systematic review provides a comprehensive, updated assessment of programs with evidence of effectiveness in reducing teen pregnancy, sexually transmitted infections (STIs), or associated sexual risk behaviors.
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