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Ontario Student Drug Use and Health Survey (OSDUHS)

Ontario Student Drug Use and Health Survey (OSDUHS)

The Ontario Student Drug Use and Health Survey (OSDUHS) is a population survey of Ontario students in Grades 7 through 12. The OSDUHS began in 1977 and is the longest ongoing school survey in Canada, and one of the longest in the world. This self-administered, anonymous survey is conducted across the province every two years with the purpose of identifying epidemiological trends in student drug use, mental health, physical activity, and risk behaviour, as well as identifying risk and protective factors.


Centre for Addiction and Mental Health, administered by the Institute for Social Research (ISR), York Region.

Data Notes:

  • The Simcoe Muskoka District Health Unit (SMDHU) collaborated with the Centre for Addiction and Mental Health (CAMH) for the 2015 and 2019 OSDUHS surveys to obtain a representative sample of Simcoe Muskoka students in Grades 7 to 12.
  • Participation in the health unit oversample requires available resources from the health unit and approval from the local school boards.
  • Data used came from the OSDUHS, its contents and interpretation are solely the responsibility of SMDHU and do not necessarily represent the official view of the CAMH.

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