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Diagnosis of Mtb infection by culture method and QFTGIT at cut-off value recommended by the manufacturer in HIV-seropositive study participants (n = 26)
| Culture method | Diagnostic performance | ||||
|---|---|---|---|---|---|
| QFTGIT/cut-off value (IU/ml) | Number of positive | Number of negative | Sensitivity(%) | Specificity(%) | |
| ≥ 0.35* | Number of positive | 5 | 10 | 83.3 | 50.0 |
| Number of negative | 1 | 10 | |||
*Manufacturer's recommended cut-off value.
