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SARS-CoV-2 infection severity according to anti-SARS-CoV-2 IgG-reactive antibody cutoffs in the 27 evaluable patients
| Variable | < 250 BAU/mL (n = 501) | 250 to 4900 BAU/mL (n = 542) | > 4900 BAU/mL (n = 191) | p value |
|---|---|---|---|---|
| SARS-CoV-2 infection | 17 (3.4%) | 10 (1.8%) | 0 | 0.018 |
| Symptomatic SARS-CoV-2 | 10 (2%) | 3 (0.5%) | 0 | 0.035 |
| Pneumonia | 4 (0.7%) | 0 | 0 | 0.05 |
| Hospital admission | 8 (1.5%) | 0 | 0 | 0.012 |
| Oxygen requirement | 7 (1.3%) | 0 | 0 | 0.006 |
| ICU admission | 2 (0.35%) | 0 | 0 | 0.2 |
| Death | 2 (0.35%) | 0 | 0 | 0.2 |
