Ontario Child Health Study (OCHS)

Other reference periods

• 2014 Ontario Child Health Study (OCHS)
• 2000-2001 (second follow-up) Ontario Child Health Study (OCHS)
• 1987 (first follow-up) Ontario Child Health Study (OCHS)
• 1983 Ontario Child Health Study (OCHS)

Generally, information is only available for reference periods after November 2000.