Table 3.
Secondary end point results: surgical site infections after 42 days depending on risk factors for infection
| Risk factor | n | ciNPT group (n = 64) | Control group (n = 68) | P |
|---|---|---|---|---|
| Age | ≤70 years | 5 (7%) | 10 (15%) | 0·053 |
| >70 years | 4 (6%) | 9 (14%) | ||
| BMI | <30 | 6 (6%) | 11 (11%) | 0·060 |
| ≥30 | 3 (10%) | 8 (27%) | ||
| Diabetes | No | 7 (8%) | 12 (13%) | 0·367 |
| Yes | 2 (5%) | 7 (18%) | ||
| Smoker | No | 3 (10%) | 2 (7%) | 0·059 |
| Yes | 6 (6%) | 17 (17%) | ||
| PAD IV | No | 7 (6%) | 12 (11%) | 0·052 |
| Yes | 2 (9%) | 7 (30%) | ||
| OP time | <3 hours | 7 (9%) | 9 (12%) | 0·055 |
| ≥3 hours | 2 (4%) | 10 (18%) | ||
| Prosthesis | No | 8 (8%) | 11 (12%) | 0·060 |
| Yes | 1 (3%) | 8 (22%) |
BMI, body mass index; ciNPT, closed‐incision negative pressure therapy; OP time, operation time; PAD, peripheral arterial disease.