What are the chances? Here's some interesting stats I put up in our resources section a while ago.
Odds of remission and varying degrees of flares Ulcerative colitis patients in a given year:
- 48% of people with ulcerative colitis are in remission
- 30% have mild disease activity
- 20% have moderate disease activity
- 1% to 2% have severe disease
70 percent of patients who have active disease in a given year will have another episode of active disease in the following year.
Only 30% of those in remission in a given year will have active disease in the following year. The longer a person with ulcerative colitis remains in remission, the less likely he or she is to experience a flare-up of the disease in the following year."
Source: http://www.ccfa.org/resources/facts-about
-inflammatory.html
Odds based on initial disease extent - On average, individuals with ulcerative colitis have a 50% chance of having their next flare within 2 years (Rowe).
- The majority of individuals who advance to more extensive disease will do so within the first 5 years after diagnosis (Rowe).
- If ulcerative colitis is initially limited to the rectum at the time of diagnosis, fewer than 30% of individuals will go on to develop more extensive disease (Rowe). Approximately 10% of patients presenting with proctitis will develop a pancolitis (Rowe). The disease remains confined to the rectum in approximately 25% of cases (Rowe).
- If ulcerative colitis involves the rectum and sigmoid colon, there is a 50% chance of more extensive disease progression over 10 years; for these individuals, the rate of complete or partial surgical removal of the colon (colectomy) is 12% over 25 years (Rowe).
- Pancolitis occurs in 10% of patients (Rowe).
- Individuals with ulcerative colitis have an increased risk of developing colorectal cancer at a rate of 0.5% to 1% per year (Le); overall, cancer occurs in 3% to 5% of individuals (Khan).
- Extraintestinal complications occur in approximately 20-25% of patients with IBD (Rowe).
Source: http://www.mdguidelines.com/ulcerative-colitis