Table I.
Background of patients with or without SSI.
| Characteristics | SSI group (n=15) | Non-SSI group (n=91) | P-value |
|---|---|---|---|
| Sex | |||
| Male/female | 6/9 | 47/44 | 0.58 |
| Age (years) | 70.9±8.5 | 70.1±8.7 | 0.72 |
| Smoking | |||
| Yes (%) | 2 (13.3) | 15 (16.5) | 0.76 |
| ASA classification | |||
| 1 | 0 (0.0) | 3 (3.3) | 0.48 |
| 2 or 3 | 15 (100.0) | 88 (96.7) | |
| Body mass index | 24.0±4.4 | 21.8±3.0 | 0.05 |
| Alcohol abuse | |||
| Yes (%) | 3 (20.0) | 36 (39.6) | 0.25 |
| Diabetes mellitus | |||
| Yes (%) | 4 (26.7) | 35 (38.5) | 0.56 |
| Preoperative biliary drainage | |||
| Yes (%) | 13 (86.7) | 66 (72.5) | 0.34 |
| Preoperative albumin (g/l) | 3.2±0.5 | 4.0±0.4 | <0.001 |
| Geriatric nutritional risk index | 87.9±7.5 | 100.0±7.6 | <0.001 |
| <94 | 12 (80.0) | 15 (16.5) | <0.001 |
| ≥94 | 3 (20.0) | 76 (83.5) | |
| Time of operation (min) | 458.0±83.8 | 476.2±104.5 | 0.52 |
| Estimated blood loss (ml) | 1,461.5±1,002.1 | 1,447.4±1,432.1 | 0.97 |
| Blood transfusion | |||
| Yes (%) | 11 (73.3) | 64 (70.3) | 0.81 |
| Postoperative pancreatic fistula | |||
| Yes (%) | 8 (53.3) | 9 (9.9) | <0.001 |
| Postoperative hospital stays (day) | 58.5±15.0 | 27.2±2.0 | <0.001 |
The analysis revealed significantly higher incidence of SSI in geriatric nutritional risk index <94 patients. SSI, Surgical site infection.