The results of three PRS models derived from a single GWAS are shown in the left panel (n total = 63,622 for FIN; n total = 1,030,836 for EUR; n total = 56,341 for BBJ). The results of four PRS models derived from a meta-GWAS are shown in the right panel (n total = 1,094,458 for EUR + FIN; n total = 119,963 for BBJ + FIN; n total = 1,087,177 for BBJ + EUR; n total = 1,150,799 for BBJ + EUR + FIN). The distribution of pseudo R 2 was estimated from 5 x 10 4 times bootstrapping. The box plot center line represents the median, the bounds represent the first and third quartile, and the whiskers reach to 1.5 times the interquartile range.