No. of cases with clinical diagnosis of TB | Mean % | ||||||
---|---|---|---|---|---|---|---|
Method | Result | Positive | Negative | Sensitivity | Specificity | PPV | NPV |
SAT-TB assay | 41.6% | 100% | 100% | 16.2% | |||
Positive | 180 | 0 | |||||
Negative | 253 | 49 | |||||
Culture methods | 29.3% | 98.0% | 99.2% | 13.6% | |||
Positive | 127 | 1 | |||||
Negative | 306 | 48 |