Table 2.
Agreement of first-line phenotypic and genotypic results among multidrug/rifampicin (MDR/RR) and isoniazid (INH)-resistant TB isolates
| LJ DST result | Total tested | First-line probe assay |
Sensitivity (95% CI) | |
|---|---|---|---|---|
| Resistant | Susceptible | |||
| Rif-R among MDR | 61 | 58 | 3 | 95% (86–99) |
| Rif-R among RR | 4 | 3 | 1 | 75% (19–99) |
| Overall Rif-R | 65 | 61 | 4 | 94% (85–98) |
| INH-R among MDR | 61 | 58 | 3 | 95 % (86–99) |
| INH-R among mono-INH | 62 | 60 | 2 | 97% (89–99) |
| Overall INH | 123 | 118 | 5 | 96% (91–99) |
Rif-R: rifampicin resistant; INH-R: isoniazid resistant