TABLE 1.
Comparison of the Smart GBS LB assay with broth enrichment culturea
| Smart GBS LB result | No. of samples with indicated broth enrichment culture result |
||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 74 | 22 | 96 |
| Negative | 1 | 209 | 210 |
| Total | 75 | 231 | 306 |
a
Calculated performance characteristics (with 95% confidence intervals in parentheses) were as follows: sensitivity, 98.67% (92.79 to 99.97%); specificity, 90.48% (85.94 to 93.93%); positive predictive value, 77.08% (67.39 to 85.05%); negative predictive value, 99.52% (97.38 to 99.99%).