Table 5.
Susceptibility of K. pneumoniae to antibiotics.
| Antibacterial drugs | ESBL (+) strains (n = 126) | ESBL (−) strains (n = 418) | x 2 | p | ||
|---|---|---|---|---|---|---|
| No. of isolates | R | No. of isolates | R | |||
| Cefazolin | 124 | 98.4 | 286 | 68.5 | 46.91 | p < 0.05 |
| Ampicillin/sulbactam | 109 | 86.7 | 301 | 71.9 | 10.96 | p < 0.05 |
| Trimethoprim-sulfamethoxazole | 97 | 76.9 | 187 | 44.7 | 40.35 | p < 0.05 |
| Ceftriaxone | 89 | 70.7 | 252 | 60.2 | 4.43 | p < 0.05 |
| Gentamicin | 89 | 70.6 | 261 | 62.4 | 2.83 | p > 0.05 |
| Nitrofurantoin | 81 | 63.9 | 284 | 68 | 0.59 | p > 0.05 |
| Ciprofloxacin | 78 | 62.1 | 273 | 65.2 | 0.49 | p > 0.05 |
| Levofloxacin | 73 | 57.7 | 261 | 62.5 | 0.83 | p > 0.05 |
| Aztreonam | 66 | 52 | 264 | 63.1 | 4.71 | p < 0.05 |
| Tobramycin | 56 | 44.7 | 193 | 46.2 | 0.12 | p > 0.05 |
| Amikacin | 39 | 30.9 | 147 | 35.1 | 0.76 | p > 0.05 |
| Cefepime | 38 | 30.2 | 229 | 54.7 | 23.49 | p < 0.05 |
| Ceftazidime | 33 | 26 | 231 | 55.3 | 32.76 | p < 0.05 |
| Piperacillin/tazobactam | 17 | 13.5 | 257 | 61.4 | 89.20 | p < 0.05 |
| Cefotetan | 10 | 7.6 | 227 | 54.3 | 84.67 | p < 0.05 |
| Imipenem | 3 | 2.4 | 235 | 56.3 | 114.04 | p < 0.05 |