Variable | No SSI N (%), n | SSI N (%), n | P value* |
---|---|---|---|
Age | |||
 <50 years | 297 (60.2), n=493 | 66 (44), n=150 | 0.0004 |
 ≥50 years | 196 (39.8), n=493 | 84 (56), n=150 |  |
Sex | |||
 Male | 267 (54.2), n=493 | 91 (60.7), n=150 | 0.1600 |
 Female | 226 (45.8), n=493 | 59 (39.3), n=150 |  |
Previous antibiotic exposure | |||
 Yes | 325 (65.9), n=493 | 84 (56), n=150 | 0.0270 |
 No | 168 (34.1), n=493 | 66 (44), n=150 |  |
Received antibiotic prophylaxis | |||
 Yes | 405 (82.2), n=493 | 129 (86), n=150 | 0.2712 |
 No | 88 (17.8), n=493 | 21 (14), n=150 |  |
Type of antibiotics prescribed | |||
 Ceftriaxone | 219 (54.1), n=405 | 88 (68.2), n=129 |  |
 Ceftriaxone + metronidazole | 170 (42), n=405 | 37 (28.7), n=129 | 0.0178 |
 Ceftriaxone + gentamicin | 16 (3.9), n=405 | 4 (3.1), n=129 |  |