Table 1.
Diagnostic performance of the COVID-19 IgG/IgM duo and Elecsys anti-SARS-CoV-2 assay
| COVID-19 IgG/IgM Duo | Elecsys anti-SARS-CoV-2 | |||
|---|---|---|---|---|
| IgM | IgG | IgM or IgG | Ab incl. IgG | |
| Sensitivity (95% CI) |
61.7% (50.2–72.1) |
82.3% (72.4–99.7) |
88.9% (79.5–94.5) |
74.1% (62.9–82.9) |
| PPV (95% CI) |
98.0% (88.2–99.9) |
97.1% (89.0–99.5) |
96.0% (88.0–99.0) |
100.0% (92.5–100.0) |
| Specificity (95% CI) |
95.8% (76.9–99.8) |
91.7% (71.5–98.5) |
87.5% (66.5–96.7) |
100% (82.8–100.0) |
| NPV (95% CI) |
42.6% (29.5–56.7) |
61.1% (43.5–76.4) |
70.0% (50.4–84.6) |
53.3% (38.0–68.0) |