Comparison between the BACTEC MGIT 960 system and the agar proportion method for susceptibility testing of multidrug resistant tuberculosis strains in a high burden setting of South Africa

Table 1 Susceptibility testing results obtained with the BACTEC MGIT 960 system and the agar proportion method

Drug	No of isolates	Both S	Both R	MGIT 960 R, proportion S	MGIT 960 S, proportion R	Agreement (%)
STR	343	74	138	124	7	61
EMB	343	110	43	186	4	44
OFX	205	171	5	1	22	89
KAN	205	178	6	5	16	89

S = Susceptible; R = Resistant, STR = Streptomycin, EMB = Ethambutol, OFX = Ofloxacin, KAN = Kanamycin.

ISSN: 1471-2334

Drug	No of isolates	Both S	Both R	MGIT 960 R, proportion S	MGIT 960 S, proportion R	Agreement (%)
STR	343	74	138	124	7	61
EMB	343	110	43	186	4	44
OFX	205	171	5	1	22	89
KAN	205	178	6	5	16	89

Drug	No of isolates	Both S	Both R	MGIT 960 R, proportion S	MGIT 960 S, proportion R	Agreement (%)
STR	343	74	138	124	7	61
EMB	343	110	43	186	4	44
OFX	205	171	5	1	22	89
KAN	205	178	6	5	16	89

Drug	No of isolates	Both S	Both R	MGIT 960 R, proportion S	MGIT 960 S, proportion R	Agreement (%)
STR	343	74	138	124	7	61
EMB	343	110	43	186	4	44
OFX	205	171	5	1	22	89
KAN	205	178	6	5	16	89