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 seven cycles of the study, conducted in 1993, 1998, 2003, 2008, 2013, 2018 and 2023.

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
Primary Maltreatment Concern Among Investigations Involving Latin American Children in Ontario in 2023
Parada, H., Wilson, L., Black, T., Fallon, B., Irwin, S., & Lefebvre, R.
2026
Referral Sources in Child Maltreatment-Related Investigations Involving Latin American Children in Ontario in 2023
Parada, H., Wilson, L., Black, T., Fallon, B., Irwin, S., & Lefebvre, R.
2026
Socioeconomic Circumstances of Latin American Families Involved in Child Welfare Investigations in Ontario in 2023
Parada, H., Wilson, L., Black, T., Fallon, B., Irwin, S., & Lefebvre, R.
2026
Substantiated Maltreatment and Harm Among Latin American Children in Ontario in 2023
Parada, H., Wilson, L., Black, T., Fallon, B., Irwin, S., & Lefebvre, R.
2026
Understanding the over-representation of Black children in Ontario in 2023
Facey, K., Patrick-Drakes, V., Clarke, E., Fallon, B., Black, T., Lefebvre, R. & King, B.
2026
Child custody disputes in child maltreatment-related investigations in Ontario in 2023
Black, T., Lefebvre, R., & Fallon, B.;
2025
First Nations Ontario Incidence Study of Reported Child Abuse and Neglect‑2023
Crowe, A., Miller, M., Fallon, B., Lefebvre, R., Black, T., Trocmé, N., Hélie, S., King, B., Esposito, T., Fluke, J., Collin‑Vézina, D., Parada, H., Hill, L., & Kartusch, M.
2025
Household source of income by primary category of substantiated maltreatment in Ontario in 2023
Lefebvre, R., Black, T., & Fallon, B.;
2025
Ongoing Child Welfare Services and Referrals to Services by Primary Category of Substantiated Maltreatment in Ontario in 2023
Chowdhury, R., Lefebvre, R., & Fallon, B.;
2025
Ontario Incidence Study of Reported Child Abuse and Neglect-2023 (OIS‑2023)
Fallon, B., Black, T., Lefebvre, R., Trocmé, N., Hélie, S., Crowe, A., Miller, M., Budau, K., Houston, E., King, B., Esposito, B., Fluke, J.,; Collin‑Vézina, D., Parada, H., Provençal, J., Chhabra, N., Sawh, P., Chan, P., Chowdhury, R., … Wilson, L.
2025