Document Detail

Medical marijuana laws in 50 states: investigating the relationship between state legalization of medical marijuana and marijuana use, abuse and dependence.
MedLine Citation:
PMID:  22099393     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Marijuana is the most frequently used illicit substance in the United States. Little is known of the role that macro-level factors, including community norms and laws related to substance use, play in determining marijuana use, abuse and dependence. We tested the relationship between state-level legalization of medical marijuana and marijuana use, abuse, and dependence.
METHODS: We used the second wave of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC), a national survey of adults aged 18+ (n=34,653). Selected analyses were replicated using the National Survey on Drug Use and Health (NSDUH), a yearly survey of ∼68,000 individuals aged 12+. We measured past-year cannabis use and DSM-IV abuse/dependence.
RESULTS: In NESARC, residents of states with medical marijuana laws had higher odds of marijuana use (OR: 1.92; 95% CI: 1.49-2.47) and marijuana abuse/dependence (OR: 1.81; 95% CI: 1.22-2.67) than residents of states without such laws. Marijuana abuse/dependence was not more prevalent among marijuana users in these states (OR: 1.03; 95% CI: 0.67-1.60), suggesting that the higher risk for marijuana abuse/dependence in these states was accounted for by higher rates of use. In NSDUH, states that legalized medical marijuana also had higher rates of marijuana use.
CONCLUSIONS: States that legalized medical marijuana had higher rates of marijuana use. Future research needs to examine whether the association is causal, or is due to an underlying common cause, such as community norms supportive of the legalization of medical marijuana and of marijuana use.
Magdalena Cerdá; Melanie Wall; Katherine M Keyes; Sandro Galea; Deborah Hasin
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-11-17
Journal Detail:
Title:  Drug and alcohol dependence     Volume:  120     ISSN:  1879-0046     ISO Abbreviation:  Drug Alcohol Depend     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2011-12-23     Completed Date:  2012-04-25     Revised Date:  2014-09-24    
Medline Journal Info:
Nlm Unique ID:  7513587     Medline TA:  Drug Alcohol Depend     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  22-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
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MeSH Terms
Drug and Narcotic Control / legislation & jurisprudence*
Health Surveys
Marijuana Abuse / epidemiology*
Middle Aged
United States
Young Adult
Grant Support
1K01DA030449-01/DA/NIDA NIH HHS; K05 AA014223/AA/NIAAA NIH HHS; K05 AA014223/AA/NIAAA NIH HHS; K05 AA014223-08/AA/NIAAA NIH HHS; R01 DA018652/DA/NIDA NIH HHS; R01 DA018652-05/DA/NIDA NIH HHS; R01DA018652/DA/NIDA NIH HHS; U01 AA018111/AA/NIAAA NIH HHS; U01 AA018111-03/AA/NIAAA NIH HHS; U01AA018111/AA/NIAAA NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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