Figure 3.

Correlation between IgG anti-RBD levels and age in cohorts stratified by type of vaccine and gender. Spearman correlation was calculated for male and female volunteers vaccinated with mRNA-1273 on day 30 (A) and 240 (B) and for men and women vaccinated with BNT162b2 on day 30 (C) and 240 (D). This analysis was performed in all volunteers, regardless of gender, vaccinated with mRNA-1273 on day 30 (E) and day 240 (F) or with BNT162b2 [day 30 (G), and day 240 (H)]. IgG anti-RBD levels were calculated as in international units (BAU/ml). Each dot indicates an individual value, and the lines indicate linear regression. On day 30, the dotted line at 5,680 BAU/ml indicates the higher limit of quantification. The Spearman r and p-value are indicated for each group. p-values < 0.05 were considered significant.