Table 5 The positive predictive value and negative predictive value of the indices, alone and in combinations
Test method | Gold standard | |||
|---|---|---|---|---|
Positive | Negative | |||
IL-33 | PPV 100.0% | Positive | 28 | 0 |
NPV 43.1% | Negative | 29 | 22 | |
ADA | PPV 96.4% | Positive | 53 | 2 |
NPV 83.3% | Negative | 4 | 20 | |
T-SPOT.TB | PPV 89.8% | Positive | 53 | 6 |
NPV 80.0% | Negative | 4 | 16 | |
IL-33 + ADA | PPV 94.6% | Positive | 53 | 3 |
NPV 82.6% | Negative | 4 | 19 | |
IL-33 + T-SPOT.TB | PPV 100.0% | Positive | 44 | 0 |
NPV 62.9% | Negative | 13 | 22 | |
ADA + T-SPOT.TB | PPV 100% | Positive | 48 | 0 |
NPV 71.0% | Negative | 9 | 22 | |
IL-33 + ADA + T-SPOT.TB | PPV 100.0% | Positive | 50 | 0 |
NPV 75.9% | Negative | 7 | 22 | |