Table 8 Performance of Gene expert and LPA test as compared to DST in detecting RIF resistance
Sensitivity | Specificity | Predictive values | Kappa | ||
|---|---|---|---|---|---|
Positive | Negative | ||||
GeneXpert | 62.5 (24.5–91.5) | 96.6 (90.3–99.3) | 62.5 (32.7–85.1) | 96.6 (92.0 98.6) | 0.59 (P < 0.01) |
LPA | 90.0 (55.5–99.8) | 99.1 (95.0–100) | 90.0 (55.9–98.5) | 99.1 (94.4–99.9) | 0.89 (P < 0.01) |