Specimen type | Sensitivity | Specificity | PPV | NPV | Diagnostic Accuracy |
No. (%), 95% confidence interval (CI) | |||||
ZN smear | 77.14% (60.98, 87.93¹) | 92% (75.03, 97.78¹) | 93.1% (78.04, 98.09¹) | 74.19% (56.75, 86.3¹) | 83.33% (71.97, 90.69¹) |
IS6110 | 100% (90.11, 100¹) | 96% (80.46, 99.29¹) | 97.22% (85.83, 99.51¹) | 100% (86.2, 100¹) | 98.33% (91.14, 99.71¹) |
TB11/12 | 100% (90.11, 100¹) | 96% (80.46, 99.29¹) | 97.22% (85.83, 99.51¹) | 100% (86.2, 100¹) | 98.33% (91.14, 99.71¹) |
Xpert MTB/RIF | 100% (89.28, 100¹) | 96.97% (79.76, 99.26¹) | 96.97% (84.68, 99.46¹) | 100% (85.69, 100¹) | 98.21% (90.55, 99.68¹) |