Table 1.
Baseline table for the convalescent plasma donors used in this study
| Total (n = 151) | Male (n = 105) | Female (n = 46) | P | Non‐Hosp. (n = 128) | Hosp. (n = 23) | P | |
|---|---|---|---|---|---|---|---|
| Age (years) | 45 (35–55) a | 48 (36–55) | 42 (29–51) | 0.058 | 42 (31–53) | 54 (48–58) | < 0.001 |
| Male (%) | 70 | 64 | 100 | < 0.001 | |||
| Non‐hosp. (%) | 85 | 78 | 100 | < 0.001 | |||
| Median first donation (days after symptom onset) | 59 (47–74) | 59 (48–74) | 54 (38–80) | 0.61 | 54 (45–74) | 63 (52–76) | 0.13 |
| IgG‐RBD (AU mL−1) b | 24 (9–70) | 30 (10–89) | 17 (9–28) | 0.009 | 18 (8–39) | 113 (70–223) | < 0.001 |
| IgG‐NP (AU mL−1) b | 28 (8–92) | 35 (10–105) | 16 (6–56) | 0.012 | 19 (7–66) | 117 (45–300) | < 0.001 |
| IgM‐RBD (%) b | 49 | 55 | 35 | 0.024 | 45 | 70 | 0.027 |
| IgA‐RBD (%) b | 65 | 70 | 55 | 0.075 | 60 | 91 | 0.004 |
| Half‐life RBD IgG (days) c | 62 (48–87) | 59 (47–84) | 69 (53–99) | 0.027 | 64 (49–93) | 54 (47–68) | 0.053 |
| Half‐life NP IgG (days) c | 59 (44–82) | 58 (43–78) | 67 (50–108) | 0.023 | 60 (45–84) | 54 (42–64) | 0.12 |
a
Numbers between parentheses indicate interquartile range.
b
Value at first donation; antibody titre in AU mL−1 for IgG‐RBD and IgG‐NP, seroprevalence for IgM‐RBD and IgA‐RBD.
c
Values obtained from regression analysis.