Frequency of non-neoplastic diagnoses
| Frequency (%) | |
| Inflammatory bowel disease | 2152 (1.8) |
| Angiodysplasia | 902 (0.7) |
| Diverticulosis | 18 875 (15.5) |
| Haemorrhoids | 7011 (5.8) |
| Radiation enteritis | 374 (0.3) |
| Solitary rectal ulcer syndrome | 228 (0.2) |
| Other diagnoses (including: lymphoma, ischaemic colitis, pseudomembranous colitis) | 1362 (1.1) |