Effects of Alcohol Interventions on Other Drug Use in the Cherokee Nation

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ObjectivesTo evaluate effects of 2 alcohol prevention interventions-Communities Mobilizing for Change on Alcohol (CMCA), a community organizing intervention designed to reduce youth alcohol access, and CONNECT, an individual-level screening and brief intervention approach-on other drug use outcomes.MethodsWe conducted a community intervention trial with quarterly surveys over 3 years (2012-2015) of high school students living within the jurisdictional service area of the Cherokee Nation in Oklahoma. We used generalized estimating equations and linear probability models to examine intervention spillover effects on other drug use.ResultsWe found significant reductions in drug use other than alcohol attributable to CMCA and CONNECT. CMCA was associated with a 35% reduction in chewing tobacco use, a 39% reduction in marijuana use, and a 48% reduction in prescription drug misuse. CONNECT was associated with a 26% reduction in marijuana use and a 31% reduction in prescription drug misuse.ConclusionsNonalcohol drug use was consistently reduced as a result of 2 theoretically and operationally distinct alcohol prevention strategies. Evaluations of alcohol prevention efforts should continue to include other drug use to understand the broader effects of such interventions.

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