Table 1.
Clinical characteristics of CD patients and healthy controls.
| Characteristics | CD with perianal fistula (n=250) | CD without perianal fistula (n=240) | Controls (n=260) | F/χ2 value | P value |
|---|---|---|---|---|---|
| Age (years) | 32.61±13.32 | 28.51±9.72 | 24.34±3.96 | 52.66 | <0.001 |
| Male (n, %) | 156 (62.4) | 186 (77.5) | 174 (66.9) | 12.931 | 0.002 |
| Location (n, %) | 2.72 | 0.26 | |||
| Ileal±upper | 17 (6.8) | 26 (10.8) | NA | ||
| Colonic±upper | 26 (10.4) | 27 (11.3) | NA | ||
| Ileocolonic±upper | 207 (82.8) | 187 (77.9) | NA | ||
| Behavior (n, %) | 58.956 | <0.001 | |||
| B1 | 63 (25.2) | 35 (14.6) | NA | ||
| B2 | 72 (28.8) | 39 (16.3) | NA | ||
| B3 | 115 (46.0) | 176 (73.3) | NA |
CD – Crohn’s disease; B1 – non-stricturing, non-penetrating; B2 – structuring; B3 – penetrating; NA – not applicable.