The increase in risk classification using Canada’s Guidance on Alcohol and Health: an empirical examination in a sample of community adults in Ontario

IntroductionThe 2023 Canadian Centre on Substance Use and Addiction drinking guidelines specify a universal low-risk threshold of 2 or fewer drinks per week, lower than previous guidelines that recommended no more than 10 drinks per week or 2 per occasion for females, and 15 pe...

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Bibliographic Details
Main Authors: Kyla L. Belisario, Amanda Doggett, James MacKillop
Format: Article
Language:English
Published: Public Health Agency of Canada 2025-02-01
Series:Health Promotion and Chronic Disease Prevention in Canada
Online Access:https://www.canada.ca/en/public-health/services/reports-publications/health-promotion-chronic-disease-prevention-canada-research-policy-practice/vol-45-no-2-2025/increase-risk-classification-guidance-alcohol-health-examination-sample-community-adults-ontario.html
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Summary:IntroductionThe 2023 Canadian Centre on Substance Use and Addiction drinking guidelines specify a universal low-risk threshold of 2 or fewer drinks per week, lower than previous guidelines that recommended no more than 10 drinks per week or 2 per occasion for females, and 15 per week or 3 per occasion for males. This study examined the increases in risk classification and perceptions of these new guideline thresholds. MethodsPrevalence of those exceeding the new low-risk threshold was compared with that of previous and other international guidelines in an observational cohort of community adults (N = 1502) from southern Ontario who had been followed since 2018 (11 waves of data collection). To examine awareness of the new guidelines and perceived risk of drinking beyond them, a follow-up was conducted with a subset of the cohort, three months after the release of the guidelines (April 2023). ResultsAcross waves, on average, 52% exceeded the new low-risk threshold compared to 11% who exceeded previous guidelines. Other international guidelines classified, on average, 16% (US), 20% (UK) and 29% (WHO) of the sample as exceeding low-risk guidelines. Approximately half of study participants (51%) were aware of Canada’s new guidelines, but 77% perceived exceeding 2 drinks per week as having little to no risk. ConclusionOver four times more adults exceeded the new low-risk drinking threshold compared to that of the previous Canadian guidelines. Additionally, more were classified as exceeding the new low-risk threshold compared to other international drinking thresholds. These results, combined with low perceptions of risk associated with consuming more than 2 drinks per week, suggest that many Canadians are at risk of exceeding the new guidelines.
ISSN:2368-738X