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Sensitivity and Specificity of index relative to reference immunoasssays
| Venous plasma samples |
Sensitivity % (95% CI) | Specificity % (95% CI) | ||||
|---|---|---|---|---|---|---|
| Pos | Neg | |||||
| Manufacturer Positive Cut-off ≥ 1.0 | Pos | 8 | 0 | 44.4 (24.5, 66.2) | 100 (97.9, 100) | |
| Neg | 10 | 177 | ||||
| Experimental Positive Cut-off ≥ 0.17 | Pos | 18 | 0 | 89.0 (67.2, 96.9) | 100 (97.9, 100) | |
| Neg | 2 | 177 | ||||
DBS samples compared to matched plasma samples tested on the Roche Elecsys ® Anti-SARS-CoV-2 immunassay.
