Nigatu Yeshambel T, Imtiaz Sameer, Elton-Marshall Tara, Rueda Sergio, Hamilton Hayley A
Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, Toronto, ON, Canada.
School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.
Am J Drug Alcohol Abuse. 2024 Jul 3;50(4):557-565. doi: 10.1080/00952990.2024.2369905. Epub 2024 Jul 23.
Despite an increase in the varieties of cannabis products available for consumption, limited evidence is available about the patterns of cannabis consumption methods before and after legalization. To examine the changes in modes of cannabis use and their correlates among adults in Ontario, Canada both prior to and following cannabis legalization in 2018. Data were utilized from the 2017 to 2022 Centre for Addiction and Mental Health's (CAMH) Monitor study, a repeated cross-sectional survey of adults 18 years of age and older ( = 2,665; 56% male). The surveys employed a regionally stratified sampling design using computer-assisted telephone interviews and web surveys. Multinomial regression was performed to examine different modes of cannabis use. The exclusive use of cannabis through ingestion methods increased from 4.0% in 2017 to 16.6% in 2022 ( < .001). However, the exclusive use of inhalation-based cannabis decreased from 49.4% in 2017 to 25.5% in 2022 ( < .001). Relative to inhalation-based modes, adults were about five times more likely to use ingestion-based modes in 2020 [RRR = 4.65 (2.94-7.35)] and 2022 [RRR = 4.75 (2.99-7.55)] than in 2019, after accounting for sociodemographic factors. Ingestion-based cannabis use among adults increased fourfold between 2017 and 2022, a period during which recreational cannabis use was legalized in Canada. The increase was especially evident after the legalization of cannabis edibles.
尽管可供消费的大麻产品种类有所增加，但关于大麻合法化前后消费方式模式的证据有限。为了研究加拿大安大略省成年人在2018年大麻合法化之前和之后大麻使用方式的变化及其相关因素。数据来自2017年至2022年成瘾与心理健康中心（CAMH）的监测研究，这是一项对18岁及以上成年人的重复横断面调查（n = 2,665；56%为男性）。调查采用区域分层抽样设计，使用计算机辅助电话访谈和网络调查。进行多项回归以研究不同的大麻使用方式。通过摄入方式单独使用大麻的比例从2017年的4.0%增加到2022年的16.6%（P <.001）。然而，以吸入方式单独使用大麻的比例从2017年的49.4%下降到2022年的25.5%（P <.001）。在考虑社会人口因素后，相对于以吸入为基础的方式，2020年[相对风险比（RRR）= 4.65（2.94 - 7.35）]和2022年[RRR = 4.75（2.99 - 7.55）]的成年人使用基于摄入方式的可能性是2019年的五倍左右。在2017年至2022年期间，加拿大休闲大麻使用合法化，成年人中基于摄入方式的大麻使用增加了四倍。在大麻食品合法化后，这种增加尤为明显。
