TABLE 5.
Wound type, wound aetiology, and wound size at initial operating room (OR) post‐debridement (intention‐to‐treat population)
| Parameter | Treatment group | ||||||
|---|---|---|---|---|---|---|---|
| NPWTi‐d (n = 93) | NPWT (n = 88) | Overall (N = 181) | |||||
| n | % | n | % | n | % | ||
| Wound type | Acute | 28 | 30.1 | 23 | 26.1 | 51 | 28.2 |
| Chronic | 65 | 69.9 | 65 | 73.9 | 130 | 71.8 | |
| Aetiology | Arterial ulcers | 2 | 2.2 | 3 | 3.4 | 5 | 2.8 |
| Burn | 1 | 1.1 | 0 | 0.0 | 1 | 0.6 | |
| Diabetic ulcers | 39 | 41.9 | 39 | 44.3 | 78 | 43.1 | |
| Necrotizing fasciitis | 1 | 1.1 | 0 | 0.0 | 1 | 0.6 | |
| Other | 1 | 1.1 | 1 | 1.1 | 2 | 1.1 | |
| Pressure ulcers | 19 | 20.4 | 12 | 13.6 | 31 | 17.1 | |
| Radiation ulcer | 2 | 2.2 | 1 | 1.1 | 3 | 1.7 | |
| Surgical dehisced | 13 | 14.0 | 10 | 11.4 | 23 | 12.7 | |
| Surgical non‐dehisced | 10 | 10.8 | 14 | 15.9 | 24 | 13.3 | |
| Traumatic | 3 | 3.2 | 5 | 5.7 | 8 | 4.4 | |
| Venous ulcers | 2 | 2.2 | 3 | 3.4 | 5 | 2.8 | |
| Anatomic location | Abdomen | 1 | 1.1 | 0 | 0.0 | 1 | 0.6 |
| Back | 2 | 2.2 | 0 | 0.0 | 2 | 1.1 | |
| Buttock | 13 | 14.0 | 7 | 8.0 | 20 | 11.0 | |
| Chest | 6 | 6.5 | 9 | 10.2 | 15 | 8.3 | |
| Forearm | 1 | 1.1 | 0 | 0.0 | 1 | 0.6 | |
| Head/neck | 0 | 0.0 | 1 | 1.1 | 1 | 0.6 | |
| Lower extremity | 67 | 72.0 | 70 | 79.5 | 137 | 75.7 | |
| Pelvic/perineal | 3 | 3.2 | 1 | 1.1 | 4 | 2.2 | |
| NPWTi‐d | NPWT | Overall | |||||
| Wound area (cm2) | n | 93 | 88 | 181 | |||
| Mean | 75.0 | 72.9 | 73.9 | ||||
| Median | 31.5 | 48.1 | 36.0 | ||||
| SD | 183.27 | 96.92 | 147.34 | ||||
| Wound volume (cm3) | n | 92 | 88 | 180 | |||
| Mean | 183.8 | 209.1 | 196.1 | ||||
| Median | 64.0 | 74.8 | 70.0 | ||||
| SD | 405.56 | 409.95 | 406.77 | ||||
Abbreviations: NPWT, negative‐pressure wound therapy; NPWTi, NPWT with cyclical instillation.