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Performance of Xpert assay for detection of TB against LJ culture (n = 332)
| Characteristics | Value (%) | 95% CI |
|---|---|---|
| Sensitivity | 93.3 | 81.7–98.6% |
| Specificity | 98.0 | 95.6–99.2% |
| PPV | 87.5 | 74.8–95.3% |
| NPV | 98.9 | 97.0–99.8% |
PPV positive predictive value, NPV negative predictive value, CI confidence interval
