Department of Community Health and Prevention, Drexel University Dornsife School of Public Health, Philadelphia, PA, USA.
Department of Pediatrics, University of Southern California Keck School of Medicine, Los Angeles, CA, USA.
J Psychoactive Drugs. 2022 Apr-Jun;54(2):129-139. doi: 10.1080/02791072.2021.1926604. Epub 2021 May 27.
It is unknown how patterns of cannabis and other drug use changed among young adult cannabis users as they became, exited or stayed medical cannabis patients (MCPs) after California legalized cannabis for adult use in 2016. A cohort of 18-26 year-old cannabis users was recruited in Los Angeles in 2014-15 (64.8% male; 44.1% Hispanic/Latinx). Based on wave 1 (pre-legalization) and wave 4 (post-legalization) MCP status, four transition groups emerged: and (non-patient user). Relationships between self-reported medical cannabis use, transition group membership, and cannabis/other drug use outcomes were examined. Changes in cannabis practices were consistent with changes in MCP status. Cannabis days, concentrate use, self-reported medical cannabis use and driving under influence of cannabis were highest among , increased for , and decreased for in wave 4. A majority of drug use outcomes decreased significantly by wave 4. Self-reported medical cannabis use was associated with more frequent cannabis use but less problematic cannabis and other drug use. Future studies should continue to monitor the impact of policies that legalize cannabis for medical or recreational use, and medical motivations for cannabis use on young adults' cannabis and other drug use.
目前尚不清楚在 2016 年加利福尼亚州将大麻合法化用于成人用途后，年轻成年大麻使用者成为、退出或继续成为医用大麻患者（MCP）时，他们的大麻和其他药物使用模式如何变化。2014-2015 年，在洛杉矶招募了一组 18-26 岁的大麻使用者（64.8%为男性；44.1%为西班牙裔/拉丁裔）。基于第 1 波（合法化前）和第 4 波（合法化后）的 MCP 状况，出现了四个过渡群体：和（非患者使用者）。研究了自我报告的医用大麻使用、过渡群体成员资格与大麻/其他药物使用结果之间的关系。大麻使用的变化与 MCP 状况的变化一致。大麻日使用量、浓缩物使用、自我报告的医用大麻使用和受大麻影响下驾驶在 中最高，在 中增加，而在 中减少。到第 4 波时，大多数药物使用结果显著下降。自我报告的医用大麻使用与更频繁的大麻使用但较少的大麻和其他药物使用问题有关。未来的研究应继续监测将大麻合法化用于医疗或娱乐用途以及医用大麻使用动机对年轻人的大麻和其他药物使用的影响。
