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Medical marijuana laws and adolescent use of marijuana and other substances: Alcohol, cigarettes, prescription drugs, and other illicit drugs.
- Source :
-
Drug and alcohol dependence [Drug Alcohol Depend] 2018 Feb 01; Vol. 183, pp. 62-68. Date of Electronic Publication: 2017 Dec 07. - Publication Year :
- 2018
-
Abstract
- Background: Historical shifts have taken place in the last twenty years in marijuana policy. The impact of medical marijuana laws (MML) on use of substances other than marijuana is not well understood. We examined the relationship between state MML and use of marijuana, cigarettes, illicit drugs, nonmedical use of prescription opioids, amphetamines, and tranquilizers, as well as binge drinking.<br />Methods: Pre-post MML difference-in-difference analyses were performed on a nationally representative sample of adolescents in 48 contiguous U.S. states. Participants were 1,179,372U.S. 8th, 10th, and 12th graders in the national Monitoring the Future annual surveys conducted in 1991-2015. Measurements were any self-reported past-30-day use of marijuana, cigarettes, non-medical use of opioids, amphetamines and tranquilizers, other illicit substances, and any past-two-week binge drinking (5+ drinks per occasion).<br />Results: Among 8th graders, the prevalence of marijuana, binge drinking, cigarette use, non-medical use of opioids, amphetamines and tranquilizers, and any non-marijuana illicit drug use decreased after MML enactment (0.2-2.4% decrease; p-values:<0.0001-0.0293). Among 10th graders, the prevalence of substance use did not change after MML enactment (p-values: 0.177-0.938). Among 12th graders, non-medical prescription opioid and cigarette use increased after MML enactment (0.9-2.7% increase; p-values: <0.0001-0.0026).<br />Conclusions: MML enactment is associated with decreases in marijuana and other drugs in early adolescence in those states. Mechanisms that explain the increase in non-medical prescription opioid and cigarette use among 12th graders following MML enactment deserve further study.<br /> (Copyright © 2017 Elsevier B.V. All rights reserved.)
- Subjects :
- Adolescent
Female
Humans
Male
Marijuana Use legislation & jurisprudence
Prevalence
Surveys and Questionnaires
United States epidemiology
Alcohol Drinking epidemiology
Cigarette Smoking epidemiology
Marijuana Use epidemiology
Medical Marijuana
Prescription Drug Misuse statistics & numerical data
Substance-Related Disorders epidemiology
Subjects
Details
- Language :
- English
- ISSN :
- 1879-0046
- Volume :
- 183
- Database :
- MEDLINE
- Journal :
- Drug and alcohol dependence
- Publication Type :
- Academic Journal
- Accession number :
- 29227839
- Full Text :
- https://doi.org/10.1016/j.drugalcdep.2017.10.021