Accuracy index | CXR Interpretation | CXR plus Xpert MTB/RIF test |
---|---|---|
Sensitivity (95% CI) | 67.6% (55.7–78) | 86.5% (76.5–93.3) |
Specificity (95% CI) | 59.6% (52.8–66) | 57.3% (50.6–63.9) |
PPV (95% CI) | 35.5% (27.6–44) | 40% (32.3–48) |
NPV (95% CI) | 84.8% (78.2–90) | 92.8% (87.2–96.5) |
Likelihood ratio (+) | 1.67 (1.34–2.09) | 2.03 (1.7–2.42) |
Likelihood ratio (−) | 0.545 (0.385–0.77) | 0.236 (0.131–0.424) |
AUC (ROC area) | 0.636 (0.573–0.698) | 0.719 (0.668–0.77) |