FOXO3 rs4946936 was not associated with cardiac and cardiovascular mortality after adjustments for gender, age at RRT onset, myocardial infarction, stroke, diabetic nephropathy, serum concentrations of intact PTH, and calcium phosphate product (HR 0.64, 95% CI 0.37–1.11, p = 0.109 for cardiac mortality and HR 0.75, 95% CI 0.48–1.16, p = 0.191 for cardiovascular mortality). Here, FOXO3 is linked to diabetic kidney disease.