Table 1.
Antibiotic resistance phenotype of the 168 K. pneumoniae nosocomial isolates.
| Antibiotic | % Resistance (n) | MIC50 (μg/ml) | MIC90 (μg/ml) |
|---|---|---|---|
| AMK | 67.2% (113) | 64 | >128 |
| AMP | 100 % (168) | 32 | >128 |
| ATM | 81.5% (137) | >128 | >128 |
| FEP | 8.9% (15) | 8.0 | 16 |
| CTX | 68.5% (115) | >128 | >128 |
| FOX | 4.1% (7) | 8.0 | 16 |
| CAZ | 72.0% (121) | >128 | >128 |
| CXM | 97.0% (163) | >8.0 | >8.0 |
| CIP | 6.5% (11) | 0.125 | 1.0 |
| GEN | 74.4% (125) | >128 | >128 |
| IPM | 0% (0) | 1.0 | 2.0 |
| LVX | 7.1% (12) | 0.5 | 2.0 |
| OFX | 3.5% (6) | 0.25 | 1.0 |
| TET | 83.9% (141) | 64 | 64 |
| TOB | 54.1% (91) | 64 | 64 |
| TIM | 36.3% (61) | 16/2 | >256/2 |
AMK, amikacin; AMP, ampicillin; ATM, aztreonam; FEP, cefepime; CTX, cefotaxime; FOX, cefoxitin; CAZ, ceftazidime; CXM, cefuroxime; CIP, ciprofloxacin; GEN, gentamicin; IPM, imipenem; LVX, levofloxacin; OFX, ofloxacin; TET, tetracycline; TIM, ticarcillin-clavulanic acid; TOB, tobramycin.