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Saliva ELISA performance characteristics.
| Assay parameter | |||
|---|---|---|---|
| Sensitivity in % (95%CI) | 87.2 | (0.75 to 0.94) | |
| Specificity in % (95%CI) | 100 | (0.96 to 1.00) | |
| Predictive values: | |||
| Disease prevalence*: | 0.5% | 5% | 10% |
| PPV in % | 100 | 100 | 100 |
| NPV in % | 99.9 | 99.3 | 98.6 |
| Accuracy in % | 99.9 | 99.4 | 98.7 |
*Positive and negative predictive values (PPV, NPV) were calculated for assumed COVID-19 prevalence.
