The Canadian federal government has committed to legalizing, regulating, and restricting access to non-medical use of cannabis in 2018. To prepare for this change, Statistics Canada has been adapting the national statistical system to measure the social and economic impacts of legalized cannabis. A new study released today in Health Reports examines the long-term trends in the use of cannabis in Canada for the first time by comparing nine national surveys of the household population that collected information about cannabis use from 1985 to 2015. Understanding past use will help inform future trends of cannabis use following legalization.
The results of this study indicate that cannabis use more than doubled from 1985 (5.6%) to 2015 (12.3%) among Canadians aged 15 years and older. The results are based on several national surveys including the Canadian Tobacco, Alcohol and Drugs Survey (CTADS), the Canadian Tobacco Use Monitoring Survey (CTUMS) and the 1985 Health Promotion Survey. Each survey asked about past-year cannabis