TABLE 2.

Accuracy of PMA-qPCR compared with agar proportion

Antimicrobial agent	PMA-qPCR			No. of samples with result by agar proportion		Accuracy (%)
	Cutoff ΔCT	2ΔCT	Result	Susceptible	Resistant
Isoniazid	−1.5	0.4	Susceptible	11	0	100
			Resistant	0	27
Rifampin	−2.4	0.2	Susceptible	11	0	100
			Resistant	0	27
Ethambutol	−1.4	0.4	Susceptible	25	0	89
			Resistant	4	9
Streptomycin	−1.4	0.4	Susceptible	15	1	97
			Resistant	0	22
Amikacin	−0.1	0.9	Susceptible	36	0	100
			Resistant	0	2
Kanamycin	−0.9	0.6	Susceptible	33	0	95
			Resistant	2	3
Capreomycin	−1.5	0.4	Susceptible	35	1	95
			Resistant	1	1
Ofloxacin	−2.4	0.2	Susceptible	32	0	100
			Resistant	0	6
Moxifloxacin	−0.2	0.8	Susceptible	34	0	100
			Resistant	0	4
Ethionamide	−0.7	0.6	Susceptible	27	2	92
			Resistant	1	8
p-Aminosalicylic acid	−1.5	0.4	Susceptible	31	0	100
			Resistant	0	7
Linezolid	−1.2	0.5	Susceptible	38	0	100
			Resistant	0	0
Cycloserine	−1.2	0.5	Susceptible	38	0	100
			Resistant	0	0
Pyrazinamidea	−1.2	0.5	Susceptible	21	0	92
			Resistant	3	14

^aMGIT.