PTH and brain infarction: Patients with DN compared with those without were more likely to be male, and had shorter dialysis vintage and time, lower hemodiafiltration usage, lower Kt/V and nPCR, higher prevalence of myocardial infarction, cerebral infarction and amputation, lower likelihood of history of PTx and PEIT, higher BMI, lower serum calcium, PTH and creatinine levels, and a poorer performance status.