Antibody level | p value | ||
---|---|---|---|
Days after onset of COVID-19 symptoms | COI of anti-NP | Ratio of anti-S | |
15 days | |||
Mean ± SD | 11.73 ± 20.01 | 8.8 ± 18.9 | |
Median (min–max) | 4.3 (0.08–140) | 3.39 (0.24–122) | 0.01* b |
25 days | |||
Mean ± SD | 4.1 ± 4.9 | 1.9 ± 1.15 | 0.23 b |
Median (min–max) | 2.23 (0.11–17.6) | 1.9 (0.5–4.5) | |
35 days | |||
Mean ± SD | 2.61 ± 2.94 | 0.83 ± .32 | |
Median (min–max) | 1.54 (0.10–8.15) | 0.89 (0.45–1.11) | 0.31 b |
P value | 0.03* a | 0.05 a |