Table 2.
Change in IgG among eligible convalescent plasma donors who were re-tested for SARS-CoV-2.
| IgG (AU/mL) time 1 |
IgG (AU/mL) time 2 |
IgG (AU/mL) time 3 |
|||||
|---|---|---|---|---|---|---|---|
| Mean (SD) | Median (IQR) | Mean (SD) | Median (IQR) | Mean (SD) | Median (IQR) | *p-value | |
| Donors tested twice (n = 37) | 30.4 (29.7) | 21.2 (4.7–51.7) | 22.7 (25.5) | 13.1 (3.9–30.3) | NA | NA | <0.01 |
| Donors tested 3 times (n = 10) | 35.5 (25.0) | 35.4 (8.6–54.4) | 27.1 (19.6) | 24.3 (6.9–42.7) | 23.4 (20.1) | 18.8 (5.6–42.8) | 0.63 |
*
Compares value at time 1 and last measured value.