Table 4 Antibiotics use.
Variables | SSI group (n = 71) | Non-SSI group (n = 882) | Statistic | P value |
|---|---|---|---|---|
Perioperative prophylactic antibiotic (%) | 0.005 | |||
None | 14 (19.7) | 232 (26.4) | ||
2nd cephalosporin | 14 (19.7) | 70 (8.0) | ||
3rd cephalosporin | 21 (29.6) | 211 (24.0) | ||
Cephamycin | 6 (8.5) | 137 (15.6) | ||
Oxacephem | 1 (1.4) | 23 (2.6) | ||
Penicillin | 2 (2.8) | 70 (8.0) | ||
Aminoglycoside | 0 | 3 (0.3) | ||
Quinolones | 1 (1.4) | 22 (2.5) | ||
Carbapenem | 5 (7.0) | 14 (1.6) | ||
Nitromidazole | 2 (2.8) | 13 (1.5) | ||
Other | 0 | 4 (0.5) | ||
Combined antibiotic | 5 (7.0) | 83 (9.4) | ||
Postoperative antibiotic (%) | 0.002 | |||
None | 2 (2.8) | 79 (9.0) | ||
2nd cephalosporin | 6 (8.5) | 81 (9.2) | ||
3rd cephalosporin | 17 (23.9) | 183 (20.8) | ||
Cephamycin | 9 (12.7) | 123 (14.0) | ||
Oxacephem | 2 (2.8) | 16 (1.8) | ||
Penicillin | 5 (7.0) | 68 (7.7) | ||
Aminoglycoside | 1 (1.4) | 2 (0.2) | ||
Quinolones | 1 (1.4) | 23 (2.6) | ||
Carbapenem | 9 (12.7) | 30 (3.4) | ||
Nitromidazole | 1 (1.4) | 0 | ||
Other | 3 (4.2) | 15 (1.7) | ||
Combined antibiotic | 15 (21.1) | 262 (29.8) | ||
Duration of postoperative antibiotic (%) | χ2 = 19.359 | < 0.001 | ||
1d | 3 (4.2) | 30 (3.4) | ||
2-4d | 15 (21.1) | 278 (31.6) | ||
5-7d | 23 (32.4) | 360 (40.9) | ||
> 7d | 28 (39.4) | 135 (15.3) | ||
Median (IQR) | 7.0 (4.0–9.0) | 5.0 (3.0–7.0) | U = 41,725 | < 0.001 |
