The target population is students attending high schools in small rural towns in the 14 counties that partially or fully fall within the Cherokee Nation reservation. Following recruitment of 20 school-based clusters, clusters are allocated to either the intervention condition or delayed-intervention control condition using constrained randomization. Constrained randomization helps to ensure balanced cluster sizes as well as similar levels of risk between the intervention and control at baseline. Study participants include all 10th grade students enrolled in the participating study high schools and students will be followed into the first year after their expected graduation.
Age range
15 Years – 17 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Number of Days of Alcohol Use
Timeframe: Surveys were administered each fall and spring semester from baseline (fall of 10th grade) to spring of 12th grade (up to 31 months and 19 days)
Number of Days of Heavy Alcohol Use
Timeframe: Surveys were administered each fall and spring semester from baseline (fall of 10th grade) to spring of 12th grade (up to 31 months and 19 days)
Number of Days of Marijuana Use
Timeframe: Surveys were administered each fall and spring semester from baseline (fall of 10th grade) to spring of 12th grade (up to 31 months and 19 days)
Number of Days of Opioid Misuse
Timeframe: Surveys were administered each fall and spring semester from baseline (fall of 10th grade) to spring of 12th grade (up to 31 months and 19 days)