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Clinical performance of antigen test using anterior nasal samples.
| PCR (nasopharyngeal samples) | |||
|---|---|---|---|
| Positive | Negative | ||
| Antigen test | Positive | 37 | 0 |
| Negative | 14 | 811 | |
| Sensitivity | 72.5 (58.3–84.1) | ||
| Specificity | 100 (99.3–100) | ||
| Positive predictive value | 100 (86.2–100) | ||
| Negative predictive value | 98.3 (97.2–99.1) | ||
Sensitivity, specificity, positive predictive value, and negative predictive value are provided with 95% confidence intervals.
