Table 6.
Positive bacterial cultures in superficial surgical site infections (SSI) and periprosthetic joint infections (PJI). Values are count (%)
| Factor | Intervention group (n = 746) | Control group (n = 738) |
|---|---|---|
| Superficial SSI | 42 (5.6) | 57 (7.7) |
| Cultures taken | 20/42 (48) | 28/57 (49) |
| Cultures positive | 15/20 (75) | 18/28 (64) |
| Bacteria considered the main cause of infection | ||
| Staphylococci | ||
| S. aureus | 9 | 10 |
| S. epidermidis | 4 | 3 |
| Coagulase negative s. | 1 | 3 |
| S. caprae | 1 | |
| Pseudomonas | 1 | |
| Enterococcus faecalis | 1 | |
| Additional bacteria cultured | ||
| Enterococcus faecalis | 1 | |
| Corynebacter | 1 | |
| Proteus mirabilis | 1 | |
| Escherisia coli | 1 | |
| Streptococcus agalactiae | 1 | |
| Enterobacter | 1 | |
| No. of patients with | ||
| multibacterial infection | 1 | 3 |
| PJI | 11 (1.5) | 7 (0.9) |
| Cultures taken | 11/11 | 7/7 |
| Cultures positive | 11/11 | 7/7 |
| Bacteria considered the main cause of infection | ||
| Staphylococci | ||
| S. aureus | 6 | 3 |
| S. epidermidis | 3 | 1 |
| S. caprae | 1 | |
| Streptococcus agalactiae | 1 | |
| Proteus mirabilis | 1 | |
| Acinetobacter B. | 1 | |
| Enterococcus fecalis | 1 | |
| Additional bacteria cultured | ||
| S. lugudensis | 1 | |
| Corynebacterium tuberculosteanicum | 1 | |
| Dermabacter hominis | 1 | |
| Acinetobacter pitti | 1 | |
| S. epidermidis | 2 | 1 |
| Micrococcus luteus | 1 | |
| Corynebacterium | 1 | |
| Brevibacterium | 1 | |
| Aerococcus viridans | 1 | |
| Dermabacter | 1 | |
| No. of patients with | ||
| multibacterial infection | 3 | 2 |