Intervening at the Right Level to Improve Student Health: An Analysis of Levels of Influence on Sexual Behavior of High School Students.

This study adopts a socio-ecological framework and examines school- and district-level influences on sexual behaviors among high school students from 16 school districts that were federally funded to conduct a school-based, multilevel sexual health program. We drew cross-sectional data from the 2015 and 2017 Youth Risk Behavior Survey from funded school districts containing 648 schools and 101,728 students. We used multilevel modeling to determine the percentage of variance in sexual health outcomes explained at school and district levels, overall and by race/ethnicity and biological sex. We found protective behaviors such as using hormonal birth control had considerable district-level variance (10.1%) while sexual risk behaviors such as having multiple sex partners showed considerable school-level variance (12.7%). We also found significant subgroup heterogeneity in the variance. Findings indicate school-based interventions should address all levels of influences of the educational system to effectively improve a myriad of student sexual health outcomes.