Statistical Bulletin 2021 — prevalence of drug use

Prevalence and patterns of drug use in the general population (adults or school children) is assessed through surveys based on representative probabilistic samples of the whole population under study. Interview surveys are based on self-report of participants regarding present and past behaviours, personal characteristics, knowledge and attitudes regarding drugs or other health topics. Methods and definitions for the data on this page can be found on the Prevalence of drug use methods and definitions page.

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