Gelfond Jonathan, Dierschke Nicole, Lowe Diana, Plastino Kristen
Jonathan Gelfond is with the Department of Epidemiology and Biostatistics, University of Texas (UT) Health Science Center at San Antonio. Nicole Dierschke, Diana Lowe, and Kristen Plastino are with the Department of Obstetrics and Gynecology and UT Teen Health, UT Health Science Center at San Antonio.
Am J Public Health. 2016 Sep;106(S1):S97-S102. doi: 10.2105/AJPH.2016.303379.
To assess whether a sexual health education intervention reduces pregnancy rates in high school students.
We performed a secondary analysis of a 3-year quasi-experimental study performed in South Texas from 2011 to 2015 in which 1437 students without a history of pregnancy at baseline were surveyed each fall and spring. Potentially confounding risk factors considered included sexual behaviors, intentions, and demographics. The outcome measure was self-reported pregnancy status for male and female students. We performed analyses for male and female students using separate discrete time-to-event models.
We found no difference in pregnancy rates between intervention and comparison students within the first 3 years of high school. Female and male students in the intervention groups had pregnancy hazard ratios of, respectively, 1.62 (95% CI = 0.9, 2.61; P = .1) and 0.78 (95% CI = 0.44, 1.48; P = .4) relative to the comparison groups.
The educational intervention had no impact on the pregnancy rate. Social media tools in pregnancy prevention programs should be adaptive to new technologies and rapidly changing adolescent preferences for these services.
评估性健康教育干预措施是否能降低高中生的怀孕率。
我们对2011年至2015年在南德克萨斯州进行的一项为期3年的准实验研究进行了二次分析，该研究中，每年春秋两季对1437名基线时无怀孕史的学生进行调查。考虑的潜在混杂风险因素包括性行为、意图和人口统计学特征。结局指标是男女生自我报告的怀孕状况。我们使用单独的离散事件时间模型对男女生进行了分析。
我们发现，在高中的前3年里，干预组和对照组学生的怀孕率没有差异。相对于对照组，干预组的女生和男生的怀孕风险比分别为1.62（95%置信区间=0.9，2.61；P=0.1）和0.78（95%置信区间=0.44，1.48；P=0.4）。
该教育干预措施对怀孕率没有影响。预防怀孕项目中的社交媒体工具应适应新技术以及青少年对这些服务的快速变化的偏好。
