The multivariable regression analysis, which included gender, age at RRT onset, myocardial infarction, stroke, diabetic nephropathy, serum concentrations of intact PTH, and calcium phosphate product, revealed that the DOCK6 rs737337 C allele remained a significant risk factor for overall and cardiac mortality among clinical factors (HR 2.40 95% CI 1.35–4.28, p = 0.003, HR 3.03, 95% CI 1.32–6.95, p = 0.009, respectively). The gene discussed is PTH; the disease is myocardial infarction.