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Sensitivity and specificity according to various cut-off values.
| Cut-off value SARS-CoV-2 Ag (pg/mL) | Sensitivity (%) | Specificity (%) |
|---|---|---|
| 1.65 | 86.7 | 81.5 |
| 2.6 | 80 | 90.7 |
| 3.65 | 80 | 98.2 |
| 4.45 | 73.3 | 98.2 |
| 6 | 63.3 | 98.2 |
SARS-CoV-2 severe acute respiratory syndrome coronavirus 2.
