Table 5.
Risk factors and surgical site infection.
| Risk factors | SSI | χ 2, p value• | ||
|---|---|---|---|---|
| Yes (%) | No (%) | |||
| Age (yrs) | 14-22 | 1 (16.7) | 5 | 27.58, 0.327 |
| 23-31 | 7 (25) | 21 | ||
| 32-40 | 2 (16.7) | 10 | ||
| 41-49 | 1 (25) | 3 | ||
| 50-58 | 2 (20) | 8 | ||
| 59-67 | 1 (16.66) | 5 | ||
| 68-76 | 1 (50) | 1 | ||
| 77-85 | 1 (50) | 1 | ||
|
| ||||
| Sex | Male | 7 (20) | 28 | 0.59, 0.808 |
| Female | 9 (27.3) | 24 | ||
|
| ||||
| Preoperative hospital stay | ≤1 | 5 (16.7) | 25 | 0.941, 0.332 |
| >1 | 11 (28.9) | 27 | ||
|
| ||||
| Nature of operation | Elective | 6 (20) | 24 | 0.941, 0.332 |
| Emergency | 10 (26.3) | 28 | ||
|
| ||||
| Surgical procedure | GI surgery | 6 (28.6) | 15 | 11.059, 0.05 |
| Urologic | 4 (36.4) | 7 | ||
| Neck | 0 (0) | 11 | ||
| Gynecologic | 3 (30) | 7 | ||
| Orthopedic | 2 (28.6) | 5 | ||
| Others (BPH, amputation…) | 1 (12.5) | 7 | ||
|
| ||||
| Duration of procedure | ≤1 hr | 9 (20.9) | 34 | 4.765, 0.029 |
| >1 hr | 7 (28) | 18 | ||
|
| ||||
| Wound classification | Clean | 3 (12) | 22 | 15.176, 0.002 |
| Clean-contaminated | 5 (22.7) | 17 | ||
| Contaminated | 6 (35.3) | 11 | ||
| Dirty | 2 (50) | 2 | ||
|
| ||||
| Comorbid condition | Yes | 5 (41.7) | 7 | 39.765, 0.000 |
| No | 11 (19.6) | 45 | ||
|
| ||||
| Postoperative hospital stay | ≤5 days | 4 (10.8%) | 33 | 0.529, 0.462 |
| >5 days | 12 (38.7%) | 19 | ||
|
| ||||
| Timing of prophylaxis administration | Early | 1 (14.3) | 6 | 21.746, 0.000 |
| Pre | 4 (15.4) | 22 | ||
| Peri | 0 (0) | 5 | ||
| Post | 8 (27.6) | 21 | ||
|
| ||||
| Duration of prophylaxis | ≤1 day | 4 (25) | 12 | 0.54, 0.3021 |
| >1 day | 9 (20.93) | 34 | ||
|
| ||||
| Presence of prophylaxis | Yes | 13 (22.03) | 46 | 36.765, 0.00 |
| No | 3 (33.33) | 6 | ||