Changing Age Demographics of Inflammatory Bowel Disease in Ontario, Canada

International cohort studies have reported increased incidence of inflammatory bowel disease (IBD) in recent years, and Canada has among the highest rates of IBD in the world. This study assessed incidence and prevalence of IBD in Ontario, the most populous province of Canada, to determine changing trends in age of onset.We used a population-based cohort derived from validated health administrative data consisting of all Ontario residents living...