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International differences in patterns of cannabis use among adult cigarette smokers: Findings from the 2018 ITC Four Country Smoking and Vaping Survey.


ABSTRACT:

Background

Although evidence shows that co-use of cigarettes and cannabis is common, there is little research examining if co-use patterns vary depending on the regulatory environment for cannabis. This study examined patterns of co-use and perceptions of relative harm among cigarette smokers in four countries with different histories, and at different stages of cannabis legalization.

Methods

Data are from the 2018 International Tobacco Control 4CV Survey and included 10035 adult cigarette smokers from Canada, United States (US), Australia, and England. At the time of the survey, Canada and the US had relatively more permissive cannabis regulations compared to Australia and England.

Results

Among this sample of 10035 cigarette smokers, Canada had the highest rate of cannabis co-use in the last 12 months (36.3%), followed by the US (29.1%), England (21.6%), and Australia (21.4%). Among past 12 month co-users (n = 3134), the US (40.2%) and Canada (35.2%) had the highest rates of daily cannabis use, followed by smokers in England (26.3%) and Australia (21.7%); Australian co-users had the highest rate of infrequent (ConclusionPatterns of tobacco and cannabis co-use differed between countries. Smokers in Canada and the US had higher rates of co-use, daily cannabis use, dual-daily use of both cannabis and cigarettes, and were more likely to perceive smoked cannabis as less harmful than cigarettes compared to England and Australia. Further attention as to how varying cannabis regulations may impact co-use patterns is warranted.

SUBMITTER: Gravely S 

PROVIDER: S-EPMC7967289 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Publications

International differences in patterns of cannabis use among adult cigarette smokers: Findings from the 2018 ITC Four Country Smoking and Vaping Survey.

Gravely Shannon S   Driezen Pete P   Smith Danielle M DM   Borland Ron R   Lindblom Eric N EN   Hammond David D   McNeill Ann A   Hyland Andrew A   Cummings K Michael KM   Chan Gary G   Thompson Mary E ME   Boudreau Christian C   Martin Nadia N   Ouimet Janine J   Loewen Ruth R   Quah Anne C K ACK   Goniewicz Maciej L ML   Thrasher James F JF   Fong Geoffrey T GT  

The International journal on drug policy 20200416


<h4>Background</h4>Although evidence shows that co-use of cigarettes and cannabis is common, there is little research examining if co-use patterns vary depending on the regulatory environment for cannabis. This study examined patterns of co-use and perceptions of relative harm among cigarette smokers in four countries with different histories, and at different stages of cannabis legalization.<h4>Methods</h4>Data are from the 2018 International Tobacco Control 4CV Survey and included 10035 adult  ...[more]

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