Table 1.
Frequency of antibiotic resistance of MRSA strains and biofilm
| Antibiotics | Weak biofilm producer (0.07 < ODs ≤ 0.14) | Moderate biofilm producer (0.14 < ODs ≤ 0.28) | Strong biofilm producer (0.28 < ODs) | Total (N = 248) | ||||
|---|---|---|---|---|---|---|---|---|
| S n. (%) | R n. (%) | S n. (%) | R n. (%) | S n. (%) | R n. (%) | S n. (%) | R n. (%) | |
| Cefoxitin | 0 (0%) | 81 (32.7) | 0 (0) | 115 (46.3) | 0 (0) | 52 (20.9) | 0 (0) | 248 (100) |
| Penicillin | 0 (0%) | 81 (32.6) | 0 (0) | 115 (46.3) | 0 (0) | 52 (20.9) | 0 (0) | 248 (100) |
| Ciprofloxacin | 49 (19.8%) | 32 (12.9) | 69 (27.8) | 45 (18.1) | 19 (7.6) | 32 (12.9) | 137 (55.2) | 109 (43.9) |
| Clindamycin | 50 (20.2%) | 31 (12.5) | 75 (30.2) | 40 (16.1) | 28 (11.2) | 24 (9.7) | 153 (61.6) | 95 (38.3) |
| Erythromycin | 29 (11.7%) | 52 (20.9) | 36 (14.5) | 79 (31.8) | 20 (8.0) | 32 (12.9) | 85 (34.2) | 163 (65.7) |
| Gentamycin | 69 (27.8%) | 12 (4.8) | 93 (37.5) | 22 (8.8) | 28 (11.2) | 24 (9.6) | 190 (76.6) | 58 (23.3) |
| SXT | 65 (26.2%) | 16 (6.4) | 92 (37.1) | 23 (9.2) | 36 (14.5) | 16 (6.4) | 193 (77.8) | 55 (22.1) |
| Vancomycin | 81 (32.7%) | 0 (0) | 115 (46.3) | 0 (0) | 52 (20.9) | 0 (0) | 248 (100) | 0 (0) |