PTH and hyperphosphatemia: Sun Jianjun found in his study that microinflammation in uremia patients is also an important reason for maintaining the sleep quality of hemodialysis patients; our research suggests that the risk factors for sleep disorders in patients were age ≥60 years, hypercalcium and hyperphosphatemia, PTH substandard, and CRP, which were similar to relevant reports at home and abroad.