Table 3.
Most frequently isolated aetiological factors of SSIs at the Department and Clinic of Orthopaedic and Trauma Surgery in 2013–2015
| Pathogen | n (%) | Ranking | MDR*, n (%) | Trend of occurrence |
|---|---|---|---|---|
| Gram-positive | 225 (56.0) | n/a | ||
| Coagulase-negative staphylococci | 81 (20.1) | 1 | ||
| Staphylococcus aureus | 65 (16.1) | 2 | 17 (26.2)** | Tau = 0.3; p = 0.60 |
| Enterococcus faecalis | 49 (12.2) | 3 | n/a | |
| Enterococcus faecium | 10 (2.5) | 9 | ||
| Others | 20 (5.0) | 8 | ||
| Gram-negative | 175 (43.5) | |||
| Acinetobacter baumannii | 41 (10.2) | 4 | 40 (97.6) | Tau = − 0.8; p = 0.20 |
| Escherichia coli | 30 (7.5) | 5 | 4 (16.7) | Tau = 0.8; p = 0.20 |
| Klebsiella pneumoniae | 22 (5.5) | 6 | 11 (50.0) | Tau = − 1.0; p = 0.12 |
| Enterobacter cloacae | 21 (5.2) | 7 | n/a | |
| Proteus mirabilis | 20 (5.0) | 8 | 7 (35.0) | Tau = 1.0; p = 0.12 |
| Pseudomonas aeruginosa | 20 (5.0) | 8 | 4 (20.0) | Tau = 1.0; p = 0.12 |
| Others | 21 (5.2) | 7 | n/a | |
| Candida spp. | 2 (0.5) | |||
| Total | 402 (100) | 91 (22.6) | Tau = − 0.3; p = 0.60 | |
*Other MDR 8 (3.8%)
**Only MRSA
MDR multidrug-resistant, including extended-spectrum beta-lactamases (ESBL) and methicillin-resistant Staphylococcus aureus (MRSA), n/a not available