Association between cannabis use in early adulthood and certain behaviours measured during adolescence

    This publication examines cannabis use during the transition from adolescence (at ages 15 and 17) to early adulthood (at age 20), as well as the behaviours associated with cannabis use. It focuses on cannabis use by young people before it became legal for non-medical purposes in Canada in October 2018.

    The data come from the Québec Longitudinal Study of Child Development (QLSCD), which has been following a cohort that is representative of young people born in Québec in 1997–1998 since the beginning of their lives.

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