Table 5 Diagnostic accuracy in all sputum smear-negative TB suspects
From: Fiberoptic bronchoscopy for the rapid diagnosis of smear-negative pulmonary tuberculosis
|  | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | +LR (95% CI) | −LR (95% CI) |
|---|---|---|---|---|---|---|
FOB | 0.759 (0.690–0.786) | 0.972 (0.920–0.992) | 0.953 (0.867–0.987) | 0.843 (0.798–0.861) | 27.333 (8.674–99.257) | 0.248 (0.216–0.337) |
CT | 0.852 (0.752–0.923) | 0.722 (0.647–0.776) | 0.697 (0.615–0.755) | 0.867 (0.777–0.931) | 3.067 (2.131–4.117) | 0.205 (0.099–0.383) |
FOB + CT | 0.963 (0.879–0.993) | 0.708 (0.645–0.731) | 0.712 (0.650–0.735) | 0.962 (0.876–0.993) | 3.302 (2.477–3.696) | 0.052 (0.009–0.188) |