Cannabis legalization and cannabis use, daily cannabis use and cannabis-related problems among adults in Ontario, Canada (2001-2019)

被引：46
作者：
Imtiaz, Sameer [1 ]
Nigatu, Yeshambel T. [1 ]
Ali, Farihah [1 ]
Douglas, Laura [1 ]
Hamilton, Hayley A. [1 ,2 ,3 ]
Rehm, Jurgen [1 ,2 ,3 ,4 ,5 ,6 ,7 ]
Rueda, Sergio [1 ,2 ,3 ,5 ]
Schwartz, Robert M. [1 ,2 ,8 ]
Wells, Samantha [1 ,2 ,3 ,10 ,11 ]
Elton-Marshall, Tara [1 ,2 ,9 ,10 ,12 ]
机构：
[1] Ctr Addict & Mental Hlth, Inst Mental Hlth Policy Res, 2035B,33 Russell St, Toronto, ON M5S 2S1, Canada
[2] Univ Toronto, Dalla Lana Sch Publ Hlth, 6th Floor,155 Coll St, Toronto, ON M5T 3M7, Canada
[3] Ctr Addict & Mental Hlth, Campbell Family Mental Hlth Res Inst, 250 Coll St, Toronto, ON M5T 1R8, Canada
[4] Univ Toronto, Inst Med Sci, Room 2374,1 Kings Coll Circle, Toronto, ON M5S 1A8, Canada
[5] Univ Toronto, Dept Psychiat, 8th Floor,250 Coll St, Toronto, ON M5T 1R8, Canada
[6] Tech Univ Dresden, Inst Clin Psychol & Psychotherapy, Chemnitzer Str 46, D-01187 Dresden, Germany
[7] IM Sechenov First Moscow State Med Univ, Inst Leadership & Hlth Management, Dept Int Hlth Projects, Trubetskaya Str 8,B-2, Moscow 119992, Russia
[8] Univ Toronto, Dalla Lana Sch Publ Hlth, Ontario Tobacco Res Unit, 155 Coll St, Toronto, ON M5T 3M7, Canada
[9] Univ Ottawa, Fac Med, Sch Epidemiol & Publ Hlth, 600 Peter Morand Crescent, Ottawa, ON K1G 5Z3, Canada
[10] Western Univ, Schulich Sch Med & Dent, Dept Epidemiol & Biostat, Kresge Bldg, London, ON N6A 5C1, Canada
[11] Deakin Univ, Sch Psychol, 1 Gheringhap St, Geelong, Vic 3220, Australia
[12] Lakehead Univ, Dept Hlth Sci, SN 1006,955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada
来源：
DRUG AND ALCOHOL DEPENDENCE | 2023年 / 244卷
基金：
加拿大健康研究院;
关键词：
Adult; Canada; Cannabis; Marijuana Use; Marijuana Smoking; Policy; HEALTH; ALCOHOL;
D O I：
10.1016/j.drugalcdep.2023.109765
中图分类号：
R194 [卫生标准、卫生检查、医药管理];
学科分类号：
摘要：
Background: In the context of cannabis legalization in Canada, we examined the effects on cannabis patterns of consumption, including cannabis use, daily cannabis use and cannabis-related problems. In addition, we examined differential effects of cannabis legalization by age and sex.Methods: A pre-post design was operationalized by combining 19 iterations of the Centre for Addiction and Mental Health (CAMH) Monitor Surveys (N = 52,260; 2001-2019): repeated, population-based, cross-sectional surveys of adults in Ontario. Participants provided self-reports of cannabis use (past 12 months), daily cannabis use (past 12 months) and cannabis-related problems though telephone interviews. The effects of cannabis legalization on cannabis patterns of consumption were examined using logistic regression analyses, with testing of two-way interactions to determine differential effects by age and sex.Results: Cannabis use prevalence increased from 11 % to 26 % (p < 0.0001), daily cannabis use prevalence increased from 1 % to 6 % (p < 0.0001) and cannabis-related problems prevalence increased from 6 % to 14 % (p < 0.0001) between 2001 and 2019. Cannabis legalization was associated with an increased likelihood of cannabis use (OR, 95 % CI: 1.62, 1.40-1.86), daily cannabis use (1.59, 1.21-2.07) and cannabis-related problems (1.53, 1.20-1.95). For cannabis-related problems, a significant two-way interaction was observed between cannabis legalization and age (p = 0.0001), suggesting differential effects among adults >= 55 years.Conclusions: Cannabis legalization was associated with an increased likelihood of cannabis use, daily cannabis use and cannabis-related problems. Given increases in these cannabis patterns of consumption, broader dissemination and uptake of targeted prevention tools is indicated.
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页数：8
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