Assay

(N = 99)

TB culture

Sensitivity

(%)

Specificity

(%)

PPV

(%)

NPV

(%)

Accuracy

(%)

positive

negative

LFD-LAMP TB positive

7

7

58.3

(27.7 - 84.8)

92

(84.1 - 96.7)

50

(23 - 77)

94.1

(86.8 - 98.1)

87.8

LFD-LAMP TB negative

5

80

Xpert MTB/RIF ultrat positive

10

18

83.3

(51.6 - 97.9)

79.3

(69.3 - 87.3)

35.7

(18.6 - 55.9)

97.2

(90.2 - 99.7)

79.8

Xpert MTB/RIF ultrat negative

2

69