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)