One-year prevalence of psychiatric disorder in Ontarians 15 to 64 years of age

Can J Psychiatry. 1996 Nov;41(9):559-63. doi: 10.1177/070674379604100904.


Objective: To present the one-year prevalence of 14 psychiatric disorders in a community sample of Ontarians aged 15 to 64 years.

Method: Data on psychiatric disorders were collected on 9953 respondents using the University of Michigan revision of the Composite International Diagnostic Interview (UM-CIDI). DSM-III-R criteria were used to define the psychiatric disorders.

Results: Almost 1 in 5 Ontarians (18.6%) had one or more of the disorders measured in the survey. Among 15-to 24-year-olds, 1 in 4 was affected. The distribution of individual disorders varied by sex and age.

Conclusion: Because of the immense burden of suffering associated with psychiatric disorders, clinical and research efforts in this area should receive high priority within the health budget.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Diagnosis, Differential
  • Female
  • Humans
  • Male
  • Mental Disorders / diagnosis
  • Mental Disorders / epidemiology*
  • Middle Aged
  • Ontario / epidemiology
  • Prevalence
  • Sex Distribution
  • Surveys and Questionnaires