Table 2.
Test Parameters of the BinaxNOW Card Test Relative to the PerkinElmer rRT-PCR Assay
| Variable | Overall | Symptomatic | Asymptomatic |
|---|---|---|---|
| Sensitivity, % | 56.6 (48.7–64.5)a | 83.3 (68.4–98.2) | 51.6 (42.9–60.2) |
| Specificity, % | 99.9 (99.7–100) | 100 (100–100) | 99.9 (99.7–100) |
| Positive predictive value, % | 96.6 (92.9–100) | 100 (100–100) | 95.7 (90.8–100) |
| Negative predictive value, % | 97.1 (96.4–97.8) | 95.8 (91.8–99.8) | 97.1 (96.4–97.8) |
| Concordance, % | 97.1 (96.4–97.7) | 96.5 (93.2–99.9) | 97.1 (96.4–97.8) |
a
95% confidence intervals shown in parentheses.