Table 1.
Resistance rates of E. coli
| Antibiotics | No. of resistant isolates (%) | MDR (n = 156) | XDR (n = 14) |
|---|---|---|---|
| No. of resistant isolates (%) | No. of resistant isolates (%) | ||
| Penicillins | |||
| Ampicillin | 148 (74) | 130 (83.3) | 14 (100.0) |
| Penicillins with β-lactamase inhibitors | |||
| Ampicillin-sulbactam | 114 (57) | 100 (64.1) | 14 (100.0) |
| Narrow spectrum cephalosporins | |||
| Cefazolin | 142 (71) | 122 (78.2) | 14 (100.0) |
| Extended spectrum cephalosporins | |||
| Ceftazidime | 104 (52) | 84 (53.8) | 14 (100.0) |
| Ceftriaxone | 82 (41) | 68 (43.6) | 14 (100.0) |
| Cefepime | 62 (31) | 68 (43.6) | 14 (100.0) |
| Cephamycins | |||
| Cefoxitin | 82 (41) | 66 (42.3) | 14 (100.0) |
| Antipseudomonal penicillins with β-lactamase inhibitors | |||
| Piperacillin-tazobactam | 48 (24) | 34 (21.8) | 14 (100.0) |
| Ticarcillin-clavulanic acid | 114 (57) | 100 (64.1) | 14 (100.0) |
| Amoxicillin-clavulanic acid | 200 (100) | 156 (100.0) | 14 (100.0) |
| Monobactams | |||
| Aztreonam | 72 (36) | 58 (37.2) | 14 (100.0) |
| Carbapenems | |||
| Imipenem | 14 (7) | 0 (0) | 14 (100.0) |
| Meropenem | 74 (37) | 60 (38.5) | 14 (100.0) |
| Aminoglycosides | |||
| Gentamicin | 40 (20) | 26 (16.7) | 14 (100.0) |
| Amikacin | 20 (10) | 6 (3.8) | 14 (100.0) |
| Tobramycin | 44 (22) | 32 (20.5) | 12 (85.7) |
| Fluoroquinolones | |||
| Ciprofloxacin | 154 (77) | 142 (91.0) | 14 (100.0) |
| Ofloxacin | 94 (47) | 78 (25.0) | 14 (100.0) |
| Folate pathway inhibitors | |||
| Cotrimoxazole | 118 (59) | 102 (65.4) | 14 (100.0) |
| Phenicols | |||
| Chloramphenicol | 34 (17) | 20 (12.8) | 12 (85.7%) |
| Polymyxins | |||
| Colistin | 0 (0) | 0 (0) | 0 (0) |