EPIDEMIOLOGY
Figure 6: Incidence by Age, UC30
Bernstein et al 2006 key findings:
• The age of onset is most commonly in the twenties for CD, across all provinces (including Quebec).
• There was no single peak age of onset for UC; there was an initial peak in the twenties, followed by a plateau, and possibly a second peak in later years.
CD and UC can be diagnosed at a young age, but new cases continue to appear in older ages. As a result, as people age, there are more and more cases in the population. In other words, the prevalence stays high in older age groups – see Figures 7 and 8.
Figure 7: Prevalence by Age, CD30
Bernstein et al 2006
THE IMPACT OF INFLAMMATORY BOWEL DISEASE IN CANADA 35
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