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| Xpert MTB/RIF | DST | PPV | NPV | |
|---|---|---|---|---|
| RIF resistant | RIF sensitive | |||
| RIF resistance detected | 21 | 0 | 100% | |
| RIF resistance not detected | 0 | 29 | 100% | |
| Sensitivity | 100% | |||
| Specificity | 100% | |||
DST, drug susceptibility testing; MTB, Mycobacterium tuberculosis; NPV, negative productive value; PPV, positive productive value.
