Ontario Child Health Study (OCHS)
The OCHS aims to assess the impact of childhood factors and experiences on developing later adult health. In 1983, the study included over 3,000 children and adolescents from 1,896 families in Ontario, Canada. Participants were between the ages of 4 and 16, with those aged 12 and above being asked more in-depth questions. Follow-up assessments were conducted in 1987 when participants were aged 8 to 20, and in 2000, when they were aged 21 to 33. By the 2000 follow-up, over 2,800 of the original participants were successfully located and assessed.
Study design
Cohort
Number of participants at first data collection
3,294 (participants)
Age at first data collection
4 - 16 years (participants)
Participant year of birth
1966 - 1979 (participants)
Participant sex
All
Representative sample at baseline?
Children living in Ontario, Canada in 1983.
Sample features
Country
Year of first data collection
1983
Primary Institutions
Chedoke-McMaster Hospitals
McMaster University
Statistics Canada
Profile paper DOI
Funders
Ministry of Community and Social Services (MCSS)
Ongoing?
No
Data types collected
- Interview – face-to-face
- Secondary data
- Self-report questionnaire – paper or computer assisted
- None
- None
- Census data
Engagement
Keywords
