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Detection of extended-spectrum β-lactamases (ESBL) in Pseudomonas spp. by phenotypic methods (n=109)
| Combination disc methods | D-D test | Sensitivity (95% CI) | E-test | Sensitivity (95% CI) | VITEK 2 | Sensitivity (95% CI) |
|---|---|---|---|---|---|---|
| CAZ/CAZ - clavulanate (%) | 28 (25.2) | 57 (0.49-0.64) | 76 (65.2) | 69.7 (0.60-0.77) | 51 (45) | 65.4 (0.57-0.72) |
| CPM/CPM - clavulanate (%) | - | 98 (88.3) | 89.9 (0.82-0.94) | - |
D-D, disc diffusion; CAZ, ceftazidime; CPM, cefepime; CI, confidence interval
