Knowledge about the health effects of cannabis before and after legalization of ‘recreational’ cannabis in Canada: findings from the International Cannabis Policy Study, 2018–2024
Wilson Tong, David Hammond · 2026
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Description
Wilson Tong and David Hammond track what Canadians know about cannabis health effects around the country's 2018 recreational legalization. Drawing on repeated national surveys from 2018 through the years after reform, their 2026 analysis covers 93,933 respondents aged 16 to 65. Agreement with seven specific health effects was combined into an overall knowledge index.
Knowledge was strongest for impaired driving and weakest for links with psychosis and schizophrenia. The overall index showed no change after legalization, while agreement fell slightly for a few harms, including risks in pregnancy and risks while driving. Non-users, people without a mental illness history, and younger respondents scored highest. The results highlight knowledge gaps that persist among frequent users five years after legal change.
Catalog record
| CREATOR | Wilson Tong, David Hammond |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 55295 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |