Extended Data Fig. 8: Relationship between genetic and phenotypic correlations of brain age gap with other complex traits.

This figure compares genetic and phenotypic correlation coefficients between brain age gap and 673 other complex traits. Genetic correlations were estimated using GWAS meta-analysis summary statistics for BAG (n = 54,890, European ancestry), while phenotypic correlations were calculated in the UK Biobank discovery sample (n = 32,634, European ancestry) using PHESANT. Summary statistics for other UK Biobank traits were obtained from Neale et al. (10.5281/zenodo.7186871). Results indicate a positive association between genetic and phenotypic correlation estimates. r: product-moment correlation coefficient, p: P value, MAD: mean absolute difference. (a) grey matter brain age gap, (b) white matter brain age gap, (c) combined brain age gap.