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The 2014 Ontario Child Health Study—Methodology
Canadian Journal of Psychiatry
  • Michael H. Boyle, McMaster University
  • Katholiki Georgiades, McMaster University
  • Laura Duncan, McMaster University
  • Laura Duncan, McMaster University
  • Jinette Comeau, King's University College at Western University Canada
  • Jinette Comeau, King's University College at Western University Canada
  • Li Wang, McMaster University
  • Tracie O. Afifi, University of Manitoba
  • William R. Avison, Western University
  • Graham Reid, Western University
  • Kathryn Bennett, McMaster University
  • Terry Bennett, McMaster University
  • Khrista Boylan, McMaster University
  • Michelle Butt, McMaster University
  • Charles Cunningham, McMaster University
  • Eric Duku, McMaster University
  • Jim Dunn, McMaster University
  • Katholiki Georgiades, McMaster University
  • Stelios Georgiades, McMaster University
  • Andrea Gonzalez, McMaster University
  • Geoffrey Hall, McMaster University
  • Magdalena Janus, McMaster University
  • Melissa Kimber, McMaster University
  • Ellen Lipman, McMaster University
  • Harriet MacMillan, McMaster University
  • Peter Rosenbaum, McMaster University
  • Roberto Sassi, McMaster University
  • Louis Schmidt, McMaster University
  • Noam Soreni, McMaster University
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Objective: To describe the methodology of the 2014 Ontario Child Health Study (OCHS): a province-wide, cross-sectional, epidemiologic study of child health and mental disorder among 4- to 17-year-olds living in household dwellings. Method: Implemented by Statistics Canada, the 2014 OCHS was led by academic researchers at the Offord Centre for Child Studies (McMaster University). Eligible households included families with children aged 4 to 17 years, who were listed on the 2014 Canadian Child Tax Benefit File. The survey design included area and household stratification by income and 3-stage cluster sampling of areas and households to yield a probability sample of families. Results: The 2014 OCHS included 6,537 responding households (50.8%) with 10,802 children aged 4 to 17 years. Lower income families living in low-income neighbourhoods were less likely to participate. In addition to measures of childhood mental disorder assessed by the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID) and OCHS Emotional Behavioural Scales (OCHS-EBS), the survey contains measures of neighbourhoods, schools, families and children, and includes administrative data held by the Ministries of Education and Health and Long-Term Care. Conclusions: The complex survey design and differential non-response of the 2014 OCHS required the use of sampling weights and adjustment for design effects. The study is available throughout Canada in the Statistics Canada Research Data Centres (RDCs). We urge external investigators to access the study through the RDCs or to contact us directly to collaborate on future secondary analysis studies based on the OCHS.

Citation Information
Michael H. Boyle, Katholiki Georgiades, Laura Duncan, Laura Duncan, et al.. "The 2014 Ontario Child Health Study—Methodology" Canadian Journal of Psychiatry Vol. 64 Iss. 4 (2019) p. 237 - 245
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