Demographic and imaging characteristics differences between the 2 groupsa
| Group I | Group II | P Value | |
|---|---|---|---|
| No. of patients | 19 | 5 | NA |
| Sex (male/female) | 14:5 | 2:3 | .29 |
| Age (yr) | 63.9 (SD, 9.5) | 58.0 (SD, 5.7) | .20 |
| BMI (kg/m2) | 24.1 (22.4–29.3) | 21.1 (16.1–24.7) | .14 |
| History of smoking | 17/19 | 5/5 | 1 |
| History of HT | 4/19 | 2/5 | .57 |
| History of DM | 1/19 | 2/5 | .10 |
| History of previous radiation | 19/19 | 5/5 | 1 |
| History of previous chemotherapy | 13/19 | 4/5 | 1 |
| Ischemia time (mins) | 60 (45–95) | 105 (90–109) | .34 |
| Presence of wound infection | 1/19 | 3/5 | .10 |
| Presence of fluid collection | 7/19 | 1/5 | .38 |
| Presence of pedicle vascular | 7/19 | 4/5 | .14 |
| structure | (Venous thrombosis: 1/5) |
Note:—NA indicates not applicable; BMI, body mass index; HT, hypertension; DM, diabetes mellitus.
↵a Groups I and II represent the group with successful free flap reconstruction and the group with wound failure, respectively. Values were described as mean (SD) or median (IQR).