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Prevalence Of Marijuana And Other Substance Use Before And After Washington State’S Change From Legal Medical Marijuana To Legal Medical And Non-Medical Marijuana: Cohort Comparisons In A Sample Of Adolescents, W. Alex Mason, Charles B. Fleming, Jay L. Ringle, Koren Hanson, Thomas J. Gross, Kevin P. Haggerty
Prevalence Of Marijuana And Other Substance Use Before And After Washington State’S Change From Legal Medical Marijuana To Legal Medical And Non-Medical Marijuana: Cohort Comparisons In A Sample Of Adolescents, W. Alex Mason, Charles B. Fleming, Jay L. Ringle, Koren Hanson, Thomas J. Gross, Kevin P. Haggerty
Department of Child, Youth, and Family Studies: Faculty Publications
Background—A growing number of states have new legislation extending prior legalization of medical marijuana by allowing non-medical marijuana use for adults. The potential influence of this change in legislation on adolescent marijuana and other substance use (e.g., spillover or substitution effects) is uncertain. We capitalize on an ongoing study to explore the prevalence of marijuana and other substance use in two cohorts of adolescents who experienced the non-medical marijuana law change in Washington State at different ages.
Method—Participants were 8th graders enrolled in targeted Tacoma, Washington public schools and recruited in two consecutive annual cohorts. The analysis …