SAT-TB result | No. of specimens with culture results | Mean % | ||||
---|---|---|---|---|---|---|
Positive | Negative | Sensitivity | Specificity | PPV | NPV | |
All samples | Â | Â | 83.6% | 79.4% | 59.4% | 93.0% |
 Positive | 107 | 73 |  |  |  |  |
 Negative | 21 | 281 |  |  |  |  |
Group A | Â | Â | 84.3% | 76.1% | 59.4% | 92.1% |
 Positive | 107 | 73 |  |  |  |  |
 Negative | 20 | 233 |  |  |  |  |
Group B | Â | Â | 0% | 100% | 100% | 98.0% |
 Positive | 0 | 0 |  |  |  |  |
 Negative | 1 | 48 |  |  |  |  |