The Centre for Addiction and Mental Health’s Ontario Student Mental Health and Well-Being Survey (OSDUHS) is the longest ongoing school survey of adolescents in Canada, and one of the longest in the world. The OSDUHS has been conducted every two years since 1977, and 2017 marks the study’s 40th anniversary. A total of 11,435 students in grades 7 through 12 from 52 school boards, 214 schools, and 764 classes participated in the 2017 OSDUHS, which was administered by the Institute for Social Research, York University. This report describes physical health indicators, mental health indicators, bullying, gambling and related problems, video gaming and related problems, and other risk behaviours among Ontario students in 2017 and changes since 1991, where available. All data are based on self-reports derived from anonymous questionnaires administered in classrooms between November 2016 and June 2017.
Celebrating 40 years
Mental Health and well-being
Among Ontario Students






