Department of Preventive Medicine, University of Southern California, Los Angeles, California.
Department of Mathematics and Statistics, California State University, Chico, California.
J Adolesc Health. 2019 Mar;64(3):382-389. doi: 10.1016/j.jadohealth.2018.09.021. Epub 2018 Nov 30.
This study assessed the effectiveness of the HIV/sexually transmitted infection/pregnancy prevention program, It's Your Game: Keep It Real (IYG).
IYG was implemented by classroom teachers in 24 urban middle schools from 2012 to 2015. Using a quasi-experimental design, each year we surveyed ninth-grade students in 10 high schools that were selected based on feeder patterns from project middle schools. We compared two groups of students (n = 4,562): (1) students whose middle school grade cohorts did not receive IYG ("No-IYG"), and (2) students whose middle school grade cohorts received IYG ("IYG"). Multilevel analyses examined differences between the two groups in the initiation of any type of sexual activity (oral, vaginal, or anal sex), presexual behaviors, and psychosocial mediators.
Students in the IYG group were less likely to report initiation of sexual activity by ninth grade compared to students in the No-IYG group (odds ratio .77; 95% confidence interval .66-.90). The IYG group was significantly less likely to have engaged in presexual behaviors, including having been on a date, had a boyfriend/girlfriend, and touched or been touched on private body parts. The IYG group had better outcomes on 11 of 19 psychosocial variables, including knowledge; beliefs about abstinence, sex, friends' beliefs, norms, and behaviors; reasons for not having sex; personal limits; exposure to risky situations; self-efficacy; and quality of dating relationships.
The results suggest that IYG, when implemented on a large scale by trained classroom teachers in urban public schools, had positive impacts on students' behaviors, beliefs, and knowledge.
本研究评估了艾滋病毒/性传播感染/怀孕预防计划“这是你的游戏:保持真实(IYG)”的有效性。
IYG 由 2012 年至 2015 年间的课堂教师在 24 所城市中学实施。采用准实验设计,我们每年在从项目中学选择的 10 所高中调查 9 年级学生。我们比较了两组学生(n=4562):(1)其中学年级组未接受 IYG 的学生(“无 IYG”),和(2)其中学年级组接受 IYG 的学生(“IYG”)。多水平分析检查了两组学生在开始任何类型的性行为(口交、阴道交或肛交)、前期性行为以及心理社会中介因素方面的差异。
与无 IYG 组相比,IYG 组的学生在 9 年级时报告开始性行为的可能性较低(优势比.77;95%置信区间.66-.90)。IYG 组更不可能有前期性行为,包括约会、有男朋友/女朋友以及触摸或被触摸私人身体部位。IYG 组在 19 个心理社会变量中的 11 个方面的结果更好,包括知识;关于禁欲、性、朋友的信仰、规范和行为的信念;不发生性行为的原因;个人限制;接触危险情况;自我效能感;和约会关系的质量。
结果表明,当经过培训的课堂教师在城市公立学校大规模实施 IYG 时,对学生的行为、信念和知识产生了积极影响。