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Test Characteristics for SARS-CoV-2 IgG More Than 21 Days After PCR Test
| Statistic | Value (95% CI) |
|---|---|
| Sensitivity | 96.6% (88.3%-99.4%) |
| Specificity | 97.7% (92.0%-99.6%) |
| Positive predictive value | 96.6% (88.3%-99.4%) |
| Negative predictive value | 97.7% (92.1%-99.6%) |
| Accuracy | 97.3% (93.1%-99.2%) |
Abbreviations: IgG, immunoglobulin G; RT-PCR, reverse transcriptase–polymerase chain reaction; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
