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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. pneumoniae isolates (n = 29)
| Detection method | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|
| MicroScan | 95.7 | 50.0 | 88.0 | 75.0 |
| Phoenix | 100.0 | 66.7 | 92.0 | 100.0 |
| VITEK 2 | 95.7 | 83.3 | 95.7 | 83.3 |
| DAM | 87.0 | 66.7 | 90.9 | 57.1 |
| DDS | 91.3 | 100.0 | 100.0 | 75.0 |
| Etest ESBL | 100.0 | 83.3 | 95.8 | 100.0 |
