The β-coefficients are presented for grey matter volumes and each kidney marker (cystatin C, CKD-EPI eGFRcys, and CKD-EPI eGFRcre at Wave 1) in univariable models, and multivariable models adjusted for age and demographics, and in multivariable models adjusted for clinical vascular risk factors and biomarkers (see Figure 1 and Supplementary material online, Table S3). Here, CST3 is linked to chronic kidney disease.