Gold standard: BACTEC MGIT DST 960 System(# of Mtb isolates) | |||||||
---|---|---|---|---|---|---|---|
Ā | Ā | RIF | INH | MDR-TB | |||
Test assay | Ā | Resistant | Susceptible | aResistant | Susceptible | Resistant | Susceptible |
(nĀ =Ā 49) | (nĀ =Ā 176) | (nĀ =Ā 60) | (nĀ =Ā 165) | (nĀ =Ā 49) | (nĀ =Ā 176) | ||
MTBDRplus | Resistant | 48 | 0 | 55 | 1 | 46 | 0 |
Susceptible | 1 | 176 | 5 | 164 | 3 | 176 | |
Sensitivity (95% CI) | 98 (89ā100) | 92 (82ā96) | 94 (83ā98) | ||||
Specificity (95% CI) | 100 (98ā100) | 99 (97ā100) | 100 (98ā100) | ||||
PPV (95% CI) | 100 (93ā100) | 98 (91ā100) | 100 (92ā100) | ||||
NPV (95% CI) | 99 (97ā100) | 97 (93ā99) | 98 (95ā100) | ||||
Cohenās kappa (95% CI) | 0.99 (0.96ā1.00) | 0.93 (0.88ā0.99) | 0.96 (0.92ā1.00) |