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
Child Maltreatment-Related Investigations Involving Infants in Ontario in 2018
Filippelli,;Joanne; Joh-Carnella,;Nicolette; Allan, Kate; Fallon,;Barbara
 2020
Children with Noted Intellectual/Developmental Disabilities in Child Maltreatment-Related Investigations in Ontario in 2018
Jack-Ackhigbe,;Peace; Fudge Schormans, Ann; Samuel, Jean; Joh-Carnella, Nicolette; Allan,;Kate; Black, Tara; Fallon,;Barbara
 2020
Children with Noted Physical Disabilities in Maltreatment-Related Investigations in Ontario in 2018
Jack-Ackhigbe, Peace; Fudge Schormans, Ann; Samuel, Jean; Joh-Carnella, Nicolette; Allan, Kate; Black, Tara; Fallon, Barbara
 2020
Hospital Referrals for Child Maltreatment-Related Concerns to the Ontario Child Welfare System in 2018
Joh-Carnella,;Nicolette; Vandermorris,;Ashley; Lefebvre,;Rachael; Fallon,;Barbara
 2020
Household Composition in Child Maltreatment-Related Investigations in Ontario in 2018
Joh-Carnella,;Nicolette; Lefebvre, Rachael; Fallon, Barbara
 2020
Housing Conditions in Child Maltreatment-Related Investigations in Ontario in 2018
Best, Laura; Joh-Carnella, Nicolette; Fallon, Barbara; Lefebvre, Rachael
 2020
Intimate Partner Violence Investigations in Ontario in 2018
Black, Tara; Fallon, Barbara; Joh-Carnella, Nicolette; Allan, Kate
 2020
Investigations Involving Latin American Children in Ontario in 2018
Parada, Henry; Mohamud, Faisa; King, Bryn; Fallon, Barbara; Black, Tara
 2020
Mental or Emotional Harm by Primary Form of Substantiated Maltreatment in Ontario in 2018
Davidson, Laura; Joh-Carnella, Nicolette; King, Bryn
 2020
Ongoing Child Welfare Services and Referrals to Services by Primary Form of Substantiated Maltreatment in Ontario 2018
Davidson, Laura; Joh-Carnella, Nicolette; King, Bryn
 2020