This study is the sixth in a series of biennial surveys that began in 1998 under the name Québec Survey of Tobacco Use in High School Students. The results of this edition indicate the proportion of students who smoked cigarettes in the 30 days preceding the survey. They also show the proportion of students who used alcohol at least once, used drugs or participated in gambling in the 12 months preceding the survey. The prevalence of each of these behaviours is compared with that observed in the previous editions of the survey.
The index of problematic alcohol and drug use reveals the proportion of students with an emerging problem or a problem requiring a specialized intervention. The index of gambling problems highlights the proportion of students at risk of developing gambling problems and those who are probable pathological gamblers.
The target population of the survey included all students in Secondary 1 through 5 enrolled in French and English, public and private high schools in Québec. In total, 4,736 students from 144 schools took part in the survey conducted in the fall 2008.