title: Multiple health-risk behaviour and psychological distress in adolescence.
abstract: OBJECTIVE
  To examine the prevalence and correlates of psychological distress in a school-based sample of Canadian adolescents.
  
  
  METHODS
  Self-reported data of demographics, weight status, physical activity, screen-time, diet, substance use, and psychological distress were derived from a representative sample of 2935 students in grades 9 to 12 (M(age) = 15.9 years) from the 2009 Ontario Student Drug Use and Health Survey.
  
  
  RESULTS
  Overall prevalence of psychological distress was 35.1%. Significant associations were shown between psychological distress and the following: being female, tobacco use, not meeting physical activity and screen-time recommendations, and inadequate consumption of breakfast and vegetables.
  
  
  CONCLUSIONS
  These findings highlight the need for targeting greater physical health promotion for adolescents at risk of mental health problems.
authors.affiliation: Faculty of Kinesiology and Physical Education, University of Toronto, Ontario.
authors.forename: Kelly P
authors.initials: KP
authors.lastname: Arbour-Nicitopoulos
authors.forename: Guy E
authors.initials: GE
authors.lastname: Faulkner
authors.forename: Hyacinth M
authors.initials: HM
authors.lastname: Irving