NICE | BHIVA | |
Eligible for screening | 2778 | 1478 |
Number eligible, who developed TB (PPV) | 66 (2.4%) | 42 (2.8%) |
Not eligible for screening | 528 | 1828 |
Number not eligible, who developed TB | 6 (1.1%) | 30 (1.6%) |
NPV | 98.9% | 98.4% |
Sensitivity | 92% | 58% |
Specificity | 16% | 56% |
Note: PPV = positive predictive value, NPV = negative predictive value