Objectives: The objectives of this study were two-fold: (1) to describe the epidemiology of childhood fractures in Ontario; and (2) to determine if the occurrence of a fracture in childhood is associated with an increased risk of having a future fracture.
Methods: This was a population-based retrospective cohort study using Ontario health administration data. Children aged 0 to 15 years were grouped according to baseline fracture status. Associations between predictors and future fracture were assessed using Poisson and Cox proportional hazard regression.
Results: During fiscal year 2003-2004 43,154 Ontario children experienced a fracture (17.5 per 1000 child years). Children with a baseline fracture had a 60% higher rate (95%CI: 46 to 75%) of fracture during the 7-year follow-up period after adjustment for sex, rurality, history of previous fracture and the occurrence of head injury and soft-tissue injury.