| Diagnosis | Frequency (%) | |||
| Females Age < 65 (%) | Females Age > 65 (%) | Males Age < 65(%) | Males Age 65+ (%) | |
| Ischemic colitis | 23 (22) | 38 (25) | 5 (5) | 9 (8) |
| Anorectal | 24 (23) | 26 (17) | 25 (26) | 16 (15) |
| Diverticulosis | 4 (4) | 26 (17) | 8 (8) | 25 (23) |
| Neoplasia | 9 (9) | 9 (6) | 7 (7) | 6 (5) |
| AVMs | 2 (2) | 10 (7) | 3 (3) | 6 (5) |
| UGIB | 6 (6) | 6 (4) | 5 (5) | 8 (7) |
| IBD | 9 (9) | 3 (2) | 7 (7) | 0 (0) |
| Non-specific colitis | 5 (5) | 2 (1) | 4 (4) | 3 (3) |
| Other | 5 (5) | 5 (3) | 10 (10) | 9 (8) |
| Unclear source | 17 (16) | 27 (18) | 24 (24) | 28 (25) |
| Total | 104 (100) | 152 (100) | 98 (100) | 110 (100) |