TABLE 2.
Drug susceptibility results of clinical strains of M. tuberculosis as determined by BACTEC MGIT 960 and BACTEC 460 TB systema
| Drug (concn in μg/ml) | No. of tests | No. of results that were:
|
Agreement (%) | |||
|---|---|---|---|---|---|---|
| S by both tests | R by MGIT 960; S by 460 TB | S by MGIT 960; R by 460 TB | R by both tests | |||
| INH (0.1) | 110 | 81 | 4 | 25 | 96.4 | |
| INH (0.4) | 29 | 5 | 3 | 21 | 89.7 | |
| RIF (1.0) | 110 | 92 | 1 | 17 | 99.1 | |
| EMB (5.0) | 110 | 93 | 3 | 1 | 13 | 96.4 |
| EMB (7.5) | 17 | 7 | 3 | 7 | 82.4 | |
| STR (1.0) | 110 | 76 | 9 | 25 | 91.8 | |
| STR (4.0) | 34 | 12 | 10 | 12 | 70.6 | |
| Total of tests | 520 | 366 | 33 | 1 | 120 | 93.5 |
a
S, susceptible; R, resistant.