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Correlation between culture confirmation assays and culture results
| Assay (no. of samples) | No. of cultured specimens with indicated result |
Sensitivity (%) | Specificity (%) | Predictive value (%) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
M. tuberculosis |
NTM |
|||||||||
| All | Assay (+) | Assay (−) | All | Assay (+) | Assay (−) | Positive | Negative | |||
| IS6110 real-time PCR (210) | 171 | 171 | 0 | 39 | 0 | 39 | 100 | 100 | 100 | 100 |
| BD MGIT TBc identification test (210) | 171 | 169 | 2 | 39 | 0 | 39 | 98.8 | 100 | 100 | 95.1 |
