Study Participants
A total of 1597 students took part in the baseline survey (831 intervention and 766 comparison), representing 92% (1597/1734) of the students who had positive parent consent and were eligible for the primary study. (Consort diagram available in Coyle et al. (Demographics for sampleSample size based on those with valid surveys at each time point. There are no statistically significant differences in overall demographic characteristics between the baseline sample and the analytic samples at 3- and 12-month follow-ups