Table 5. Antimicrobial susceptibility of 19 methicillin-resistant S. aureus isolates, stratified by patients with or without risk factors.
| Antibiotics | Without risk factors(n = 6) | With risk factors(n = 13) | P value |
| Vancomycin | 6 (100%) | 13 (100%) | |
| Linezoid | 6 (100%) | 13(100%) | |
| Teicoplanin | 6 (100%) | 13(100%) | |
| Fusidic acid | 6 (100%) | 13(100%) | |
| Oxacillin | 0 | 0 | |
| Penicillin | 1 (17%) | 0 | 0.141 |
| TMP-SMXa | 6 (100%) | 8 (62%) | 0.085 |
| Clinidamycin | 3 (50%) | 1 (8%) | 0.041 |
| Doxycyclin | 6 (100%) | 7 (54%) | 0.05 |
| Erythromycin | 3 (50%) | 1 (8%) | 0.041 |
a
TMP-SMX, trimethoprim-sulfamethoxazole.
P value by chi square test for the significant difference in drug resistance among colonized subjects with and without risk factors.