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Sensitivities, specificities, PPV, and NPV of phenotypic methods for detection of ESBL production with molecular identification as the reference method for K. oxytoca isolates (n = 14)
| Detection method | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|
| MicroScan | 100.0 | 11.1 | 38.5 | 100.0 |
| Phoenix | 100.0 | 0.0 | 35.7 | NDa |
| VITEK 2 | 60.0 | 88.9 | 75.0 | 80.0 |
| DAM | 80.0 | 55.6 | 50.5 | 83.3 |
| DDS | 80.0 | 88.9 | 80.0 | 88.9 |
| Etest ESBL | 100.0 | 22.2 | 41.7 | 100.0 |
ND, not determined.
