SNPs (i.e., with a mean imputation quality score above 0.96 in both datasets). The association and survival analyses were carried-out by varying the reference panel used for imputation, while including the same phenotyped sample (i.e., 6744 and 5148 participants, respectively). The analyses included no monozygotic twin pairs, because genotypic data were available for only 1 twin of a pair in the GoNL dataset.
