Fig. 5

Multivariate associations and their respective 95% CI’s in case of statistical significance of comorbidities and frailty index parameters with the anti-S1 IgG concentration at T1, T2, and the log fold change between these two timepoints. Estimates have been divided by 2*SD to rescale them. Significant associations are colored red. If variables were not included in the stepwise regression model for T2 or the log-fold change “NA’s” are plotted instead