Table 2 Accuracy of real-time PCR testing in pleural fluid for TB diagnosis.
From: Evaluation of real-time PCR of patient pleural effusion for diagnosis of tuberculosis
PCR | TB | non-TB | Sens (%) (95% CI) | Spec (%) (95% CI) | PPV (%) (95% CI) | NPV (%) (95% CI) |
|---|---|---|---|---|---|---|
Positive (n = 45) | 42 | 3 | 42.8 | 93.3 | ||
Negative (n = 101) | 52 | 49 | (38.4 - 44.8) | 94.2 | (83.6 - 97.7) | 48.5 |
Inhibited (n = 4) | 4 | 0 | (85.8 - 98.0) | (44.2 - 50.4) | ||
Total (n = 150) | 98 | 52 |