Table 1.
Baseline characteristics of crohn’s disease patients with prior ileocecal resection/right hemicolectomy
| Characteristic | CD (n = 162) |
| Female/male (n) | 77/85 |
| Disease duration in years (median; min-max) | 17.1 (3.3-52.1) |
| Follow-up time in years (median; min-max) | 4.4 (1.3-6.8) |
| Time between surgery and index colonoscopy in years (median; min-max) | 7.7 (0.3-37.6) |
| Age at index colonoscopy (mean; standard deviation) | 42.6 (± 13.4) |
| Montreal classification (n; %) | |
| Age at diagnosis | |
| A1 | 25 (15.5) |
| A2 | 116 (72) |
| A3 | 20 (12.4) |
| Disease location | |
| L1 | 89 (54.9) |
| L2 | 9 (5.6) |
| L3 | 55 (34) |
| L1-4 | 7 (4.3) |
| L3-4 | 2 (1.2) |
| Behavior | |
| B1 | 6 (3.7) |
| B2 | 77 (47.5) |
| B3 | 79 (48.8) |
| Perianal disease | 38 (23.5) |
| Smoking habits (n; %) | |
| Non-smoker | 86 (55.1) |
| Ex-smoker | 34 (21.8) |
| Current smoker | 36 (23.1) |
| Medication at index colonoscopy | |
| Thiopurines | 111 (68.5) |
| Anti-TNFα | 59 (36.4) |
TNFα: Tumor necrosis factor α.