{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T09:59:21Z","timestamp":1778147961057,"version":"3.51.4"},"reference-count":31,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2022,4,2]],"date-time":"2022-04-02T00:00:00Z","timestamp":1648857600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["American J Addict"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Objectives<\/jats:title><jats:p>A growing number of US states have legalized marijuana use in the past decade. We examined if marijuana legalization is associated with increased marijuana\u2010related admissions to substance use treatment facilities between 2000 and 2017.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Data from the Treatment Episode Data Set\u2010Admissions were used to examine the relationship between marijuana\u2010related admissions among adults aged \u226518 by year and legalization status (i.e., fully legalized, medical use only [partially legalized], and illegal) (N\u2009=\u200935,457,854). Using interaction analyses, we further examined whether certain patient characteristics were associated with residence in states that legalized marijuana use as compared to those in which marijuana remained illegal.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Overall, the proportion of marijuana\u2010related admissions in states with legalization decreased by 2.3% from 31.7% in 2000\u20132005 to 29.4% in 2012\u20132017 (odds ratio [OR], 0.90; 95% confidence intervals [CI], 0.89\u20130.90) with little difference from states where marijuana use remained illegal, in which marijuana use as any reason for admissions decreased by 0.3% from 39.8% in 2000\u20132005 to 39.5% in 2012\u20132017 (OR,\u20090.99; 95% CI, 0.98\u20130.99). We did not find any striking patient characteristics (e.g., referral by the police) associated with admissions in states that legalized compared to those that had not.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion and Conclusions<\/jats:title><jats:p>While earlier studies suggested that marijuana legalization is associated with increased levels of use, emergency department visits, and traffic fatalities, our findings suggest that marijuana legalization did not increase marijuana\u2010related treatment use in the United States.<\/jats:p><\/jats:sec><jats:sec><jats:title>Scientific Significance<\/jats:title><jats:p>This is the first study to examine the association of marijuana legalization with marijuana\u2010related treatment use.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ajad.13286","type":"journal-article","created":{"date-parts":[[2022,4,3]],"date-time":"2022-04-03T03:47:53Z","timestamp":1648957673000},"page":"423-432","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Admissions to substance use treatment facilities for cannabis use disorder, 2000\u20132017: Does legalization matter?"],"prefix":"10.1111","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4961-3361","authenticated-orcid":false,"given":"Taeho Greg","family":"Rhee","sequence":"first","affiliation":[{"name":"Department of Public Health Sciences, School of Medicine University of Connecticut Farmington Connecticut USA"},{"name":"Department of Psychiatry, School of Medicine Yale University New Haven Connecticut USA"},{"name":"VA New England Mental Illness, Research, Education and Clinical Center (MIRECC) VA Connecticut Healthcare System West Haven Connecticut USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert A.","family":"Rosenheck","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, School of Medicine Yale University New Haven Connecticut USA"},{"name":"VA New England Mental Illness, Research, Education and Clinical Center (MIRECC) VA Connecticut Healthcare System West Haven Connecticut USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,4,2]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"World Health Organization. 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