Table 1 Clinical characteristics of the patients (n = 200)
Patient characteristic no. (%) / median(range) | Healing (n = 101) | Non-healing(n = 99) | P |
|---|---|---|---|
Male (%) | 92(91.1) | 94(94.9) | 0.43 |
Age (years) | 37(19 ~ 65) | 34(18 ~ 61) | 0.33 |
BMI (Kg/m2) | 23.7(17.9 ~ 35.9) | 23.9(16.9 ~ 34.6) | 0.6 |
Smoking history (%) | 40(39.6) | 52(52.5) | 0.09 |
Alcohol intake history (%) | 8(7.9) | 20(20.2) | 0.02 |
Previous anal surgery (%) | 70(69.3) | 64(64.6) | 0.58 |
Fistula classification (%) | Â | Â | 0.41 |
 Intersphincteric | 23(22.8) | 19(19.2) |  |
 Transsphincteric | 62(61.4) | 55(55.6) |  |
 Suprasphincteric | 15(14.8) | 24(24.2) |  |
 Extrasphincteric | 1(1) | 1(1) |  |
Horseshoe fistula (%) | 55(54.5) | 54(54.5) | 1.00 |
Recurrent fistula (%) | 38(37.6) | 33(33.3) | 0.63 |
Postoperative CNR value | 36.6(2.1 ~ 156.3) | 99.9(13.9 ~ 514.1) | < 0.01 |
Postoperative ADC value (10− 3mm2/s) | 1.35(0.2 ~ 2.08) | 1.28(0.82 ~ 2.01) | 0.01 |