Table 3. Comparison of NDO-LID Rapid Test, M. leprae antigen-specific ELISA and WBA positive response rates.

Leprosy classification		Rapid Test	ELISA (OD)				IFN-γ Secretion by WBA (pg/ml)
		NDO-LID	LID-1	NDO-LID	ND-O-BSA		LID-1	ML89	ML2044	ML2028
	Cut offα	-	0.2	0.2	0.2	Cut offβ	50	50	50	50
	Total (n)	n (%)	n (%)	n (%)	n (%)	Total (n)	n (%)	n (%)	n (%)	n (%)
MB	38	36 (94.7%)	35(92.1%)	35(92.1%)	34(89.5%)	35	14/35 (40%)	10/35 (28.6%)	11/35 (31.4%)	11/35 (31.4%)
PB	23	15 (65.2%)	12(52.2%)	11(47.8%)	14(60.9%)	23	13 (56.5%)	11 (47.8%)	14 (60.7%)	11 (47.8%)
Post-MDT	22	7 (31.8%)	9(45.0%)	9(45.0%)	11(55.0%)	20	12/20 (54.5%)	14/20 (63.6%)	7/20 (31.8%)	9/20 (40.9%)
HHC	119	34 (28.6%)	53(44.5%)	31(26.0%)	63(52.9%)	116	56/116 (48.3%)	51/116 (44.0%)	49/115 (42.6%)	40/116 (34.5%)
TB	11	1 (9.1%)	2(18.2%)	0	2(18.2%)	11	0	0	0	0
EC	31	10 (33.3%)	4(12.9%)	5(16.1%)	12(38.7%)	31	16 (51.6%)	15 (48.4%)	13 (41.9%)	8 (25.8%)

α: Cut off value of M. leprae-specific antigen ELISA was defined as 0.2 OD value.

β: Cut off value of IFN-γ was defined as 50 pg/ml.