Ontario Incidence Study

The Ontario Incidence Study of Reported Child Abuse and Neglect (OIS) is designed to collect information about the children and families who are investigated by child welfare services on a periodic basis, using a standardized set of definitions, from every jurisdiction in Ontario.

There have been six cycles of the study, conducted in 1993, 1998, 2003, 2008, 2013 and 2018.

NOTE: These are findings that reflect the Ontario child welfare system. Please also note that publications related to the OIS are often only available in English.

Title Year Type
OACAS Webinar. Ontario Incidence Study of Reported Child Abuse and Neglect 2023 (OIS-2023) Presentation
Child Welfare Investigations involving Latin American Children in Ontario in 2018 Information Sheet
Investigaciones de Bienestar Infantil Involucrando a Niños Latinoamericanos en Ontario en el 2018 Information Sheet
Medical Neglect in Child Maltreatment-Related Investigations in Ontario in 2018 Information Sheet
Characteristics of Maltreatment-Related Investigations Involving Older Adolescents Aged 16 to 17 in Ontario in 2018 Information Sheet
Mashkiwenmi-daa Noojimowin: Let’s have strong minds for the healing: First Nations Ontario Incidence Study of Reported Child Abuse and Neglect-2018 Report
Characteristics of Placements in Out of Home Care During the Investigation in Ontario in 2018 Information Sheet
Housing Conditions in Child Maltreatment-Related Investigations in Ontario in 2018 Information Sheet
Investigations Involving Latin American Children in Ontario in 2018 Information Sheet
Previous Case Openings by Primary Form of Substantiated Maltreatment in Ontario in 2018 Information Sheet