TABLE 5.
Correlation between two amplification assays for detection of M. tuberculosis and culture results or resolved results (culture and clinical diagnosis) among 48 nonrespiratory specimens
| Diagnostic criteria and assay | No. of samples
|
Sensitivity (%) | Specificity (%) | Predictive value (%)
|
||||
|---|---|---|---|---|---|---|---|---|
| Diagnosis positive
|
Diagnosis negative
|
Positive | Negative | |||||
| PCR positive | PCR negative | PCR positive | PCR negative | |||||
| Culture results | ||||||||
| RAPID BAP-MTB | 1 | 0 | 1 | 46 | 100.0 | 97.9 | 50.0 | 100.0 |
| DTB | 0 | 1 | 3 | 44 | 0 | 93.6 | 0 | 97.8 |
| Resolved results | ||||||||
| RAPID BAP-MTB | 2 | 0 | 0 | 46 | 100.0 | 100.0 | 100.0 | 100.0 |
| DTB | 1 | 1 | 2 | 44 | 50.0 | 95.7 | 33.3 | 97.8 |