Table 1.
Antibiotic profiles of Staphylococcus aureus isolated from women and children in Guangzhou, China.
| Antibiotic | S. aureus (n = 131) | MRSA (n = 64) | MSSA (n = 67) | P-valuea | |||
|---|---|---|---|---|---|---|---|
| R, n (%) | I, n (%) | R, n (%) | I, n (%) | R, n (%) | I, n (%) | ||
| Penicillin | 123 (93.9) | 0 (0.0) | 64 (100.0) | 0 (0.0) | 59 (88.1) | 0 (0.0) | <0.01 |
| Erythromycin | 77 (58.8) | 1 (0.8) | 51 (79.7) | 0 (0.0) | 26 (38.8) | 1 (1.5) | <0.01 |
| Clindamycin | 73 (55.7) | 0 (0.0) | 49 (76.6) | 0 (0.0) | 24 (35.8) | 0 (0.0) | <0.01 |
| SXT | 10 (7.6) | 0 (0.0) | 4 (6.3) | 0 (0.0) | 6 (9.0) | 0 (0.0) | 0.75 |
| Gentamicin | 1 (0.8) | 2 (1.5) | 0 (0.0) | 0 (0.0) | 1 (1.5) | 2 (3.0) | NA |
| Vancomycin | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | NA |
| Ciprofloxacin | 3 (2.3) | 2 (1.5) | 1 (1.6) | 2 (3.1) | 2 (3.0) | 0 (0.0) | NA |
| Tetracycline | 41 (31.3) | 0 (0.0) | 30 (46.9) | 0 (0.0) | 11 (16.4) | 0 (0.0) | <0.01 |
| Nitrofurantoin | 3 (2.3) | 1 (0.8) | 2 (3.1) | 1 (1.6) | 1 (1.5) | 0 (0.0) | NA |
| Rifampicin | 2 (1.5) | 14 (10.7) | 1 (1.6) | 11 (17.2) | 1 (1.5) | 3 (4.5) | 0.02b |
| Linezolid | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | NA |
| QDA | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | NA |
MRSA, methicillin-resistant S. aureus; MSSA, methicillin-susceptible S. aureus; SXT, trimethoprim/sulfamethoxazole; QDA, dalfopristin/quinupristin. R, Resistant; I, Intermediate; NA, not applicable. aAntibiotic resistance of MRSA vs. MSSA by chi-squared test (two-sided); bRifampicin-intermediate of MRSA vs. MSSA by chi-squared test (two-sided).