Table 2. Performance of HEMA-EXPRESS test for active-TB diagnosis in the different study populations.

Population	TB prevalence (%)	Group	N	HEMA-EXPRESS positives	Sensitivity	Specificity	Accuracy	Positive predicting value	Negative predicting value
1	4.0	Active TB	9	7	77.8	97.2	96.4	53.8	99.0
		Controls	213	6
2	15.4	Active TB	60	35	58.3	97.3	91.3	79.5	92.8
		Controls	330	9
3	16.7	Active TB	51	36	70.5	51.6	54.7	22.6	89.7
		Controls	254	123
4	31.9	Active TB	15	2	13.3	53.1	40.4	11.8	56.7
		Controls	32	15
5	5.4	Active TB	3	2	66.6	96.1	94.5	50.0	98.0
		Controls	52	2
6	41.4	Active TB	152	6	3.9	94.4	56.9	33.3	58.2
		Controls	215	12
Total	20.5	Active TB	290	88	30.6	84.6	73.5	34.0	82.5
		Controls	1,096	167

HEMA-EXPRESS, rapid 123 TB-XT HEMA EXPRESS test; TB, tuberculosis.