Expected survival has steadily improved in the past 30 years (18). Cancer specific survival at 5 years is:
- Around 90% of survival for localized disease (in and outside the bowel without lymph node metastases)
- Around 76% survival for regional lymph node disease
- Around 13% survival for distant metastases
Around half of the local relapses occur within 2 years and 2/3 within 3 years after surgery. Relapses after 5 years is very seldom, but may appear after preoperative irradiation.
Most relapses appear as distant metastases. Local relapses are found in around 5%.
Five-year relative survival of patients with cancer in the rectum and colon, in percent during the diagnosis period 1974–2013.
Source: Cancer Registry of Norway