TABLE 2.
Diagnostic performance of the smear, Löwenstein–Jensen, thin layer agar (TLA), and resuscitation-promoting factors (Rpfs)-TLA cultures in pleural TB.
| Methods | Sensitivity %(95% CI) |
Specificity %(95% CI) |
PPV %(95% CI) |
NPV %(95% CI) |
LR + (95% CI) |
LR- (95% CI) |
Accuracy (95% CI) |
| Smear | 8.74 (4.67–15.78) |
100 (89.85–100) |
100 (70.09–100) |
26.56 (19.68–34.82) |
- | 91.3 (86–96.9) |
31.39 (24.21–39.58) |
| Löwenstein–Jensen | 26.21 (18.69–35.45) |
100 (89.85–100) |
100 (87.54–100) |
30.91 (23.04–40.07) |
- | 73.8 (65.8–82.8) |
44.53 (36.47–52.88) |
| TLA | 29.13 (21.23–38.52) |
100 (89.85–100) |
100 (88.65–100) |
31.78 (23.72–41.10) |
- | 70.9 (62.6–80.2) |
46.72 (38.56–55.05) |
| Rpfs-TLA | 43.69 (34.51–53.32) |
100 (89.85–100) |
100 (92.13–100) |
36.96 (27.80–47.16) |
- | 56.3 (47.5–66.8) |
57.66 (49.29–65.62) |
PPV, positive predictive value; NPV, negative predictive value; LR+, likelihood ratio for positive test; LR-, likelihood ratio for negative value.