| Disease duration (y) (median (range)) | 36 (21–59) |
| Age at diagnosis | 22 (11–50) |
| % Ileal disease | 4% (1/24) |
| % Ileocolonic | 25% (6/24) |
| % Colonic disease | 71% (17/24) |
| % B1 (non-stricturing/penetrating) | 21% (5/24) |
| % B2 (stricturing) | 38% (9/24) |
| % B3 (penetrating) | 42% (10/24) |
| % p (perianal) | 38% (9/24) |
| Concurrent immunosuppressants | 63% (15/24) |