In addition to the high incidence of students from grades 7 to 13 who admitted to this, 15% of students with driver’s licences (grades 10–13) reported driving while under the influence of alcohol and 20% admitted to driving after using cannabis.
The authors state that these findings are “of great concern,” given that alcohol-related motor vehicle collisions are a major source of injury among adolescents.
p. 565 Drinking, cannabis use and driving among Ontario students
— E.M. Adlaf et al
Canadian Medical Association Journal