Referring to the dialysis modality, the Cox proportional hazard regression model showed a significant association of mortality with higher plasma pro-ANP (p = 0.008) and lower systolic BP value (p = 0.043) in PD patients versus less residual diuresis (p = 0.005) and lower BMI (p = 0.017) in HD patients. The gene discussed is NPPA; the disease is Huntington disease.