Table 3.
Surgical wound classifications, and subsequent rates of surgical site infection, stratified by surgical procedure
| Liver resection, alone (n = 9128) | Liver resection, with other procedure (n = 1047) | Distal pancreatectomy (n = 5608) | Pancreatico-duodenectomy (n = 11 593) | P-value | |
|---|---|---|---|---|---|
| Wound classification breakdown | |||||
| Clean | 1566 (17.2%) | 54 (5.2%) | 440 (7.8%) | 103 (0.9%) | <0.001 |
| Clean/Contaminated | 7057 (77.3%) | 851 (81.3%) | 4710 (84.0%) | 10270 (88.6%) | |
| Contaminated | 401 (4.4%) | 104 (9.9%) | 352 (6.3%) | 1015 (8.8%) | |
| Dirty/Infected | 104 (1.1%) | 38 (3.6%) | 106 (1.9%) | 205 (1.8%) | |
| Subsequent SSI rates, by wound classification | |||||
| Clean | 9.6% | 31.5% | 13% | 15.5% | <0.001 |
| Clean/Contaminated | 8.5% | 25.5% | 14.2% | 21.2% | <0.001 |
| Contaminated | 17.2% | 37.5% | 19.9% | 26.7% | <0.001 |
| Dirty/Infected | 16.3% | 28.9% | 20.8% | 30.2% | 0.036 |
SSI, surgical site infection.