Are adenomatous colonic polyps rare in ulcerative colitis?
Despite the increased cancer risk in long-standing ulcerative colitis, adenomatous polyps arise less frequently in ulcerative colitis patients than in patients without ulcerative colitis.
Self-report and consultation data provide comparable estimates of the prevalence of specific diagnoses such as diabetes. For other conditions, self-report and consultation records provide different measures of prevalence, and the choice of measure will depend on the morbidity being studied.