Clinical characteristics of the 412 patients with Crohn’s disease included in the phenotypic analyses
| *Information about age at disease onset was available in 341 patients. | |
| †Including perianal fistulae. | |
| n | 412 |
| Age at disease onset* (y) | |
| Mean (median) [range] | 27.8 (24) [7–71] |
| Age at disease onset* (n (%)) | |
| <40 y | 289 (84.8%) |
| ⩾40 y | 52 (15.2%) |
| Disease location (n (%)) | |
| Ileal and no colonic | 50 (12.2%) |
| Colonic and no ileal | 62 (15.1%) |
| Both ileal and colonic | 298 (72.7%) |
| Any ileal | 348 (84.9%) |
| Any colonic | 360 (87.8%) |
| Disease behaviour (n (%)) | |
| Fistulising† and non-fibrostenotic | 58 (14.1%) |
| Fibrostenotic and non-fistulising | 97 (23.5%) |
| Fistulising and fibrostenotic | 165 (40.1%) |
| Non-fistulising, non-fibrostenotic | 92 (22.3%) |
| Any fistulising | 223 (54.1%) |
| Any fibrostenotic | 262 (63.6%) |
| Surgery (n (%)) | |
| Ileocaecal resection | 144 (34.9%) |
| No ileocaecal resection | 268 (65.1%) |