Around 1 in 10 cases of inflammatory bowel disease (IBD) will present before adulthood, with the median age at presentation being 11–12 years.1 IBD in children and young people is associated with more extensive disease, increased disease activity and a higher rate of complications compared with adult-onset IBD.2Worldwide, estimates of paediatric IBD prevalence rates are lacking, but data suggest its incidence is increasing.3
United European Gastroenterology Education