TABLE 4.
Factors Associated With Downgrading GAC
| Characteristic | OR | 95% CI | P | |
|---|---|---|---|---|
| GA classification | ||||
| Reference (GA IIIA) | — | — | ||
| I/II | 0.00 | 0.00 to 4.19E+13 | 0.59 | |
| IIIB/C | 9.84 | 5.23 to 18.50 | <0.001 | |
| Location of injury | ||||
| Reference (tibia) | — | — | ||
| Injuries elsewhere | 1.07 | 0.62 to 1.84 | 0.81 | |
| Mechanism of injury | 0.44 | 0.15 to 1.27 | 0.13 | |
| Presence of bone loss | 0.86 | 0.42 to 1.76 | 0.69 | |
| Width of wound (per additional cm) | 0.92 | 0.85 to 1.00 | 0.04 | |
| Length of wound (per additional cm) | 0.93 | 0.87 to 0.98 | 0.01 | |
| Presence of skin loss | 0.26 | 0.10 to 0.64 | 0.004 | |
| Presence of muscle loss | 0.78 | 0.30 to 2.01 | 0.61 | |
| Amount of skin debrided, cm2 | ||||
| Reference (no debridement) | — | — | ||
| <1 | 0.90 | 0.47 to 1.73 | 0.76 | |
| 1-5 | 0.53 | 0.18 to 1.57 | 0.25 | |
| >5 | 1.19 | 0.17 to 8.05 | 0.86 | |
| Amount of muscle debrided, cm2 | ||||
| Reference (no debridement) | — | — | ||
| <1 | 0.82 | 0.43 to 1.55 | 0.54 | |
| 1-5 | 0.31 | 0.09 to 1.10 | 0.71 | |
| >5 | 0.88 | 0.11 to 7.03 | 0.91 | |
| Amount of fascia debrided, cm2 | ||||
| Reference (no debridement) | — | — | ||
| <1 | 0.88 | 0.46 to 1.70 | 0.71 | |
| 1-5 | 0.68 | 0.22 to 2.15 | 0.51 | |
| >5 | 1.24 | 0.09 to 17.2 | 0.88 | |
| Amount of bone debrided, cm2 | ||||
| Reference (no debridement) | — | — | ||
| <1 | 1.19 | 0.63 to 2.25 | 0.58 | |
| 1-5 | 0.94 | 0.35 to 2.57 | 0.91 | |
| >5 | 0.63 | 0.07 to 5.79 | 0.68 | |