Table 1.
General Characteristics and Immune Response Parameters of 87 CCP Donors
| Gender (N, (% total group) | Male 39 (45%) |
| Female 48 (55%) | |
| Age (mean ± SD) | 47.2 ± 14.9 years (median 47, range 20–80 years) |
| ABO Group (N, (% total group) | A 32 (37%, 78%Rh +) |
| B 16 (18%, 69% Rh +) | |
| AB 3 (3%, 100% Rh +) | |
| O 36 (42%, 92% Rh +) | |
| Neutralization IC50 (mean ± SD) | 121.1 ± 133.9 (median 61.4, range <8.0–581.4) |
| Quartile 1 <8–31 | |
| Quartile 2 32–61 | |
| Quartile 3 62–153 | |
| Quartile 4 154–581 | |
| Ortho (Ig total) S/CO value (mean ± SD) | 229.6 ± 188.4 (median 203, range 0.02–904) |
| Quartile 1 0.02–49.8 | |
| Quartile 2 50–203 | |
| Quartile 3 204–352 | |
| Quartile 4 353–904 | |
| Abbott (IgG) Index value (mean ± SD) | 4.8 ± 2.0 (median 4.6, range 0.9–8.7) |
| Quartile 1 0.9–2.9 | |
| Quartile 2 3.0–4.6 | |
| Quartile 3 4.7–6.8 | |
| Quartile 4 6.9–8.7 |