Table 3 Comparisons of the constituent ratio of categorical variable data between flaps that survived and flaps with partial necrosis
|
Flaps that survived (n = 80) N (%) |
Flaps with partial necrosis (n = 8) N (%) | χ2 | p | |
|---|---|---|---|---|
| Pivot point (above tip of lateral malleolus) | 0.678* | |||
| ≤ 6 cm | 59 (92.2) | 5 (7.8) | ||
| > 6 cm | 21 (87.5) | 3 (12.5) | ||
| Top-edge location | 0.004* | |||
| The 8th zone or lower zone | 63 (96.9) | 2 (3.1) | ||
| The 9th zone | 17 (73.9) | 6 (26.1) | ||
| Length-width ratio | 0.020* | |||
| 2.50 ≤ LWR < 5:1 | 70 (94.6) | 4 (5.4) | ||
| 5 ≤ LWR ≤ 6:1 | 10 (71.4) | 4 (28.6) | ||
| Width of the skin island | 0.459* | |||
| 4.0 cm ≤ width < 8.0 cm | 35 (94.6) | 2 (5.4) | ||
| 8.0 cm ≤ width ≤ 13.0 cm | 45 (88.2) | 6 (11.8) | ||
| Dimension of skin island | 12.809 | 0.002 | ||
| < 80.0 cm2 | 45 (100.0) | 0 (0.0) | ||
| 80.0 cm2 ≤ dimension < 100.0 cm2 | 18 (85.7) | 3 (14.3) | ||
| ≥ 100.0 cm2 | 17(77.3) | 5(22.7) |