TABLE 3.
Association between race/ethnicity and magnitude of immunoglobulin G (IgG) response among participants with signal to calibrator (S/C) ratio of 1.4 or higher, the threshold for a positive IgG test.
| Sex | Race/ethnicity | N | S/C ratio median (25th, 75th percentile)* | P |
|---|---|---|---|---|
| Women | Non-Hispanic Black | 366 | 6.24 (4.79, 6.85) | 0.003 |
| Non-Hispanic White | 403 | 5.40 (3.83, 6.60) | ||
| Hispanic American | 22 | 6.02 (4.57, 6.85) | ||
| Other | 34 | 6.37 (4.04, 7.05) | ||
| Men | Non-Hispanic Black | 38 | 5.59 (4.42, 6.40) | 0.02 |
| Non-Hispanic White | 124 | 4.92 (3.42, 6.45) | ||
| Hispanic American | 5 | 6.19 (5.91, 6.48) | ||
| Other | 19 | 6.31 (5.74, 6.83) |
⁎
Values are medians (25th and 75th percentiles) for signal to calibrator ratios, a proxy for magnitude of the immune response as measured by Abbott Architect SARS-COV-2 IgG test.