Table 1.
Characteristics of patients with CD in our study.
| Gender (M/F) | 77/29 |
| Mean duration of disease before IFX in months | 38.7 ± 42.9 |
| Mean age of diagnosis in yrs | 27.2 ± 9.7 |
| A1 (≤16 yrs) | 10 (9.4%) |
| A2 (17–40 yrs) | 85 (80.2%) |
| A3 (>40 yrs) | 11 (10.4%) |
| Location | |
| L1 (ileum only) | 18 (17.0%) |
| L2 (colon only) | 22 (20.8%) |
| L3 (ileocolonic) | 66 (62.3%) |
| L4* | 0 |
| Behavior | |
| B1 (nonstricturing, nonpenetrating) | 49 (46.2%) |
| B2 (stricturing) | 29 (27.4%) |
| B3 (penetrating) | 28 (26.4%) |
| P # | 32 (30.2%) |
| Fistula | |
| Perianal | 28 (26.4%) |
| Enterocutaneous | 3 (4.8%) |
| Enterovaginal | 3 (2.8%) |
| Intestinal | 12 (11.3%) |
| Current smoker | 19 (17.9%) |
| Previous CD-related abdominal surgery | 12 (11.3%) |
| Step-up/top-down strategy | 57/49 |
*A modifier that can be added to L1–L3 when concomitant upper gastrointestinal disease is present.
#Added to B1–B3 when concomitant perianal disease is present.