Quebec Cannabis Survey (QCS)

    The QCS 2024 is currently in collection. You have been invited to participate? Learn more about participating in the study.

    Type of survey

    Cross-sectional survey with provincial representativeness.

    Targeted population

    Persons aged 15 and over living in Québec.

    Persons residing in the regions of Terres-Cries-de-la-Baie-James and Nunavik and those living on a reserve (for QCS 2018 and QCS 2019) or in an institutional collective household are not covered by the survey.


    2018: 10,191 individuals

    2019: 10,192 individuals

    2021: 14,034 individuals

    2022 : 12,395 individuals

    2023 : 13,209 individuals

    Sampling frame

    The sampling frame was constructed from the insured persons registration file of the Régie de l’assurance maladie du Québec.


    Prevalence and frequency of cannabis use, forms and methods of use, reasons for using cannabis and context of cannabis use, sources of supply, risk of problematic use, social norms and perceptions regarding cannabis, driving after cannabis use, cannabis use during the COVID-19 pandemic.

    Technical and methodological documentation

    Methodological or technical documents 2018

    Methodological or technical documents 2019

    Methodological or technical documents 2021

    Methodological or technical documents 2022


    Analytical products and data

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