Prognosis

Note:

• 0.5% of patients with Crohn's disease develop cancer (95% CI: 0.0% to 1.6%) over 10 years ^b
•  0.3% of patients with ulcerative colitis develop colorectal cancer a year (95% CI: 0.2% to 0.4%). ^b
• 12% of patients with ulcerative colitis have cancer or dyplasia on initial surveillance colonoscopy (95% CI: 10% to 15%) ^b