Variable | Bacteria isolated from SSI (n = 216) | No bacteria isolated from SSI (n = 98) | OR [95% CI] | P-value | |
---|---|---|---|---|---|
Age (years) | ≤ 19 | 38 (67.9%) | 18 (32.1%) | 1 |  |
20 – 39 | 133 (63.6%) | 76 (36.4%) | 0.83(0 .42- 1.61) | 0.5577 | |
40 – 59 | 31 (91.2%) | 3 (8.8%) | 4.89( 1.24- 27.87) | 0.0112 | |
≥ 60 | 14 (93.3%) | 1 (6.7%) | 6.63( 0.86- 295.67) | 0.0478 | |
Sex | Male | 61 (81.3%) | 14 (18.7%) | 1 | Â |
Female | 155 (64.9%) | 84 (35.1%) | 0.42(0 .21- 0.82) | 0.0072 | |
Ward type | Obst & Gyn | 115 (59.0%) | 80 (41%) | 1 | Â |
General Surgery | 89 (85.6%) | 15 (14.4%) | 4.13( 2.17- 8.22) | 0.0000 | |
Orthopedic | 12 (80.0%) | 3 (20.0%) | 2.78(0.72- 15.79) | 0.1085 | |
Operation | Elective | 57 (83.8%) | 11 (16.2%) | 1 | Â |
Emergency | 159 (64.6%) | 87 (35.4%) | 0.35( 0.16- 0.73) | 0.0025 | |
Duration from admission to operation | ≤ 1 day | 147 (65.3%) | 78 (34.7%) | 1 |  |
> 1 days | 69 (77.5%) | 20 (22.5%) | 1.83( 1.01- 3.42) | 0.0356 | |
Duration from admission to discharge | ≤ 14days | 48 (58.5%) | 34 (41.5%) | 1 |  |
> 14days | 110 (82.7%) | 23 (17.3%) | 3.39( 1.73- 6.68) | 0.0001 | |
Antibiotic chemoprophylaxis | CRO * | 124 (62.9%) | 73 (37.1%) | 1 | Â |
CRO* + MZ** | 70 (76.9%) | 21 (23.1%) | 1.96( 1.08- 3.65) | 0.0187 | |
Others × | 22 (84.6%) | 4 (15.4%) | 3.24( 1.04- 13.37) | 0.0289 | |
Duration of Postoperative antibiotics | ≤ 3days | 48 (50.5%) | 47 (49.5%) | 1 |  |
> 3days | 168 (76.7%) | 51 (23.3%) | 3.23( 1.87- 5.54) | 0.0001 | |
Outcome | Improved | 147 (72.1%) | 57 (27.9%) | 1 | Â |
 | Died | 10 (100.0%) | 0 (0.0%) | - | 0.042 |