Research Article
Urinary Tract Infections due to Multidrug-Resistant Enterobacteriaceae: Prevalence and Risk Factors in a Chicago Emergency Department
Table 3
Antibiotic resistance rates among 451 unique Enterobacteriaceae bacteria with and without multidrug resistance (MDR) isolated from 431 study patients.
| Antibiotics | All isolates () | MDR isolates () | Non-MDR isolates () | |
| Ampicillin | 55% | 99% | 45% | <0.001 | Amoxicillin-clavulanate | 10% | 35% | 4% | <0.001 | Piperacillin-tazobactam | 2% | 9% | 1% | <0.001 | Cefuroxime | 8% | 38% | 1% | <0.001 | Ceftriaxone | 4% | 20% | 0% | <0.001 | Cefepime | 3% | 17% | 0% | <0.001 | Ertapenem | 0% | 0% | 0% | 1.00 | Levofloxacin | 17% | 72% | 4% | <0.001 | Gentamicin | 10% | 47% | 1% | <0.001 | Amikacin | 1% | 2% | 0.3% | 0.10 | Trimethoprim-sulfamethoxazole | 24% | 77% | 12% | <0.001 | Nitrofurantoin | 14% | 21% | 12% | 0.04 | ESBL resistance pattern | 5% | 24% | 0% | <0.001 |
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aCompared between MDR and non-MDR isolates. ESBL: extended-spectrum beta-lactamase.
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