Table 1.
Multidrug resistance, resistance to chlorhexidine and resistance to methicillin from 211 clinical isolates of CoNS by species
| Species | n (%) | MDR n (%) | MIC of CHX ≥ 4 mg/L n (%) | MIC of CHX ≥ 4 mg/L and MR n (%) |
|---|---|---|---|---|
| S. epidermidis | 65 (31) | 54 (83) | 25 (38.4) | 22 (33,8) |
| S. hominis hominis | 32 (15.1) | 26 (81) | 10 (31.2) | 10 (31,2) |
| S. auricularis | 25 (12) | 24 (96) | 13 (52) | 11 (44) |
| S. haemolyticus | 24 (11.3) | 21 (87.5) | 8 (33.3) | 8 (33,3) |
| S. capitis urealyticus | 11 (5.2) | 10 (91) | 4 (36.3) | 4 (36,3) |
| S. saccharolyticus | 5 (2.3) | 4 (80) | 1 (20) | 1 (20) |
| S. chonii urealyticum | 5 (2.3) | 5 (100) | 0 | 0 |
| S. cohnii cohnii | 4 (1.8) | 4 (100) | 0 | 0 |
| S. saprophyticus | 4 (1.8) | 4 (100) | 1 (25) | 1 (25) |
| S. capitis capitis | 3 (1.4) | 3 (100) | 1 (33.3) | 1 (33,3) |
| S. chromogenes | 2 (1.4) | 2 (100) | 0 | 0 |
| S. xylosus | 1 (0.4) | 1 (100) | 0 | 0 |
| S. simulans | 1 (0.4) | 1 (100) | 0 | 0 |
| S. sciuri | 1 (0.4) | 1 (100) | 0 | 0 |
| Unidentified CoNS | 28 (13.2) | 24 (85.7) | 2 (7.1) | 2 (7,1) |
| Total | 211 (100) | 184 (87) | 65 (31) | 60 (28,4) |
MRD multidrug resistance, MIC minimum inhibitory concentration, CHX chlorhexidine, CoNS Coagulase-negative staphylococci, MR Methicillin-resistant