I have Crohn's Colitis and read a couple places on the internet that IF it was confined to the colon only [mine was colon & rectum], there was an 80% chance that it would NOT return. A few folks here confirmed similar odds by what they were told by their GI's. flchurchlady's prognosis from her GI is very encouraging. These favorable reports helped me make my decision.
After choosing to have my proctocolectomy and permanent ileostomy surgery in July 2011, I met post-surgically with my new GI and point-blank posed that 80% scenario to her. She said that her opinion was that 80% for non-reccurence is pretty accurate when there has never been small intestine involvement. My old GI did not offer it up, but quietly confirmed it, but was quick to add "it can return." He was very pro Remicade, but I refused the biological drugs.
I have read the 50% thing, but thought it pertained to Crohn's where there was small intestine involvement.
If I recall correctly from my researching, only 20% of Crohn's patients have Crohn's Colitis. The other four Crohn's types comprise the majority. I never knew there were 5 types of Crohn's until I began researching for my surgery.