TABLE 2.
Comparison of the BD GeneOhm StrepB assay with broth enrichment culturea
| BD GenOhm StrepB result | No. of samples with indicated broth enrichment culture result |
||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 61 | 9 | 70 |
| Negative | 14 | 222 | 236 |
| Total | 75 | 231 | 306 |
a
Calculated performance characteristics (with 95% confidence intervals in parentheses) were as follows: sensitivity, 81.33% (70.67 to 89.40%); specificity, 96.10% (92.73 to 98.20%); positive predictive value, 87.14% (76.99 to 93.95%); negative predictive value, 94.07% (90.25 to 96.72%).