Table 1.
Antimicrobial resistance profiles and virulence gene carriage among S. epidermidis clinical isolates.
|
sesI-positiveisolatesb(N = 26) |
sesI-negative isolates (N = 99) |
p-valuec | |||
|---|---|---|---|---|---|
| No. | % | No. | % | ||
| Antimicrobialsa | |||||
| Ciprofloxacin | 19 | 73.1 | 19 | 19.2 | 0.000 |
| Chloramphenicol | 5 | 19.2 | 38 | 38.4 | 0.067 |
| Clindamycin | 17 | 65.4 | 49 | 49.5 | 0.149 |
| Erythromycin | 21 | 80.8 | 81 | 81.8 | 0.902 |
| Gentamicin | 21 | 80.8 | 20 | 20.2 | 0.000 |
| Linezolid | 0 | 0.0 | 0 | 0.0 | N/A |
| Penicillin | 25 | 96.2 | 93 | 93.9 | 0.662 |
| Tetracycline | 5 | 19.2 | 31 | 31.3 | 0.996 |
| SXTb | 22 | 84.6 | 29 | 29.3 | 0.000 |
| Vancomycin | 0 | 0.0 | 0 | 0.0 | N/A |
| Virulence genes | |||||
| aae | 25 | 96.2 | 97 | 98.0 | 0.588 |
| aap | 25 | 96.2 | 56 | 56.6 | 0.000 |
| ACME-arcA | 9 | 34.6 | 49 | 49.5 | 0.176 |
| atlE | 26 | 100 | 96 | 97.0 | 0.369 |
| bhp | 1 | 3.9 | 23 | 23.2 | 0.026 |
| gehD | 13 | 50.0 | 34 | 34.3 | 0.142 |
| icaA | 20 | 76.9 | 28 | 28.3 | 0.000 |
| IS256 | 18 | 69.2 | 35 | 35.4 | 0.002 |
| Resistance genes | |||||
| mupA | 8 | 30.8 | 14 | 14.1 | 0.048 |
| qacA/B | 13 | 50.0 | 31 | 31.3 | 0.076 |
| mecA | 25 | 96.2 | 89 | 89.9 | 0.316 |
aSXT, trimethoprim/sulfamethoxazole; bN, number of isolates; cNA, not analyzed.