The colocalized causal SNP, rs7528419, is located at chr1p13.3 and 4.964 kb upstream PSRC1, and in strong linkage disequilibrium with rs583104 (r2 = 0.932), the shared causal variant between the four medium HDL traits (total concentration of medium HDL particles, total lipids, total cholesterol and cholesteryl esters in medium HDL) and CAD, with a distance of 546.7 kb. Here, PSRC1 is linked to coronary artery disorder.