| IBD-associated CRC | Ulcerative colitis | Crohn’s disease | Indeterminate colitis | |
| (n = 149) | (n = 89) | (n = 59) | (n = 1) | |
| Sex | ||||
| Male | 89 (60%) | 58 (65%) | 29 (49%) | 1 (100%) |
| Female | 60 (40%) | 31 (35%) | 30 (51%) | 0 (0%) |
| Median age at diagnosis of IBD | 29 (6–83) | 30 (10–71) | 29 (6–83) | 70 |
| Median age at onset of symptoms | 28 (6–83) | 28 (10–71) | 29 (6–83) | 67 |
| Median age at diagnosis of CRC | 49 (21–85) | 49 (21–83) | 50 (27–85) | 77 |
| Disease extent | ||||
| Unknown (ulcerative colitis) | 9 (10%) | 0 (0%) | ||
| Left-sided disease (ulcerative colitis) | 14 (16%) | 1 (100%) | ||
| Extensive disease (ulcerative colitis) | 66 (74%) | 0 (0%) | ||
| Unknown (Crohn’s disease) | 10 (17%) | |||
| <50% segmental colitis (Crohn’s disease) | 17 (28%) | |||
| >50% segmental colitis (Crohn’s disease) | 14 (23%) | |||
| Pancolitis (Crohn’s disease) | 18 (30%) | |||
| Primary sclerosing cholagitis | 19 (13%) | 16 (18%) | 3 (5%) | 0 (0%) |
CRC, colorectal carcinoma; IBD, inflammatory bowel disease.