Table 2.

Paired comparison of minimum inhibitor concentrations of Rifampicin for the modified and classic resazurin microtiter assays for detection of drug susceptibility in Mycobacterium tuberculosis

	Rifampicin
			Modified REMA MIC
	MIC	0.0625	0.125	0.25	0.5	1	2	≥4
Classic REMA MIC	0.0625	6	4	6	4	4	1	2
	0.125	2	0	0	9	2	1	1
	0.25	1	0	1	3	2	0	8
	0.5	0	0	0	1	2	0	19
	1	0	0	0	0	1	0	0
	2	0	0	0	0	0	1	0
	≥4	0	0	0	0	0	0	0

κ = 0.16.