Table 2.
Correlation (Spearman's rs) with neutralizing titer in different subgroups.
| Total cohort (n = 79) | Infection cohort (n = 38) | Vaccine cohort (n = 41) | Cohort anti-spike > 80 RU/mL (n = 44) | Cohort anti-spike < 80 RU/mL (n = 35) | Cohort anti-spike < 40 RU/mL (n = 24) | Cohort avidity index > 75% (n = 43) | |
|---|---|---|---|---|---|---|---|
| Anti-spike IgG | 0.88∗ | 0.79∗ | 0.78∗ | 0.66∗ | 0.68∗ | 0.49∗ | 0.82∗ |
| Avidity index | 0.62∗ | 0.22 | 0.32∗ | 0.31∗ | 0.29 | 0.08 | 0.33∗ |
| Combined product (anti-spike multiplied with avidity index) | 0.89∗ | 0.80∗ | 0.81∗ | 0.69∗ | 0.67∗ | 0.49∗ | 0.84∗ |
Note: n = number of blood samples.
∗ p < 0.05.