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Comparison of the KY493 screening probe and culture in respiratory specimens relative to diagnosis and treatment for M. tuberculosis or atypical mycobacterial infection
| Test and results | No. of patients with the following clinical outcomea:
|
Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | |
|---|---|---|---|---|---|---|
| Positive | Negative | |||||
| Culture | 76.2 | 100 | 100 | 94.9 | ||
| Positive | 48 | 0 | ||||
| Negative | 15 | 278 | ||||
| PCR-KY493 | 81.0 | 93.8 | 76.2 | 95.6 | ||
| Positive | 51 | 16 | ||||
| Negative | 12 | 262 | ||||
Combined results for the Gauting, Geneva, and Paris sites.
