Table 1.

Basic clinical information of included patients

Characteristics	Overall
Age (years), mean ± sd	65.209 ± 5.1919
Gender [(%)], n (%)
Male	71 (64.5%)
Female	39 (35.5%)
Disease duration (years), mean ± sd	4.525 ± 0.55478
Hypertension [(%)], n (%)
Yes	50 (45.5%)
No	60 (54.5%)
Diabetes [(%)], n (%)
Yes	38 (34.5%)
No	72 (65.5%)
Economic status [(%)], n (%)
Good	56 (50.9%)
Poor	54 (49.1%)
Cr (μmol/L), mean ± sd	41.245 ± 6.2137
BUN (mmol/L), mean ± sd	22.545 ± 3.1063
ALB (g/L), mean ± sd	40.215 ± 2.5458
Hb (g/L), mean ± sd	102.54 ± 11.524
TG (mmol/L), mean ± sd	2.8845 ± 0.54959
TC (mmol/L), mean ± sd	6.2155 ± 0.53607
Dialysis time (months), mean ± sd	28.215 ± 4.2081
Cognitive impairment, n (%)
Group without cognitive impairment	55 (50%)
Group with cognitive impairment	55 (50%)

Economic status, creatinine (Cr), blood urea nitrogen (BUN), serum albumin (ALB), hemoglobin (Hb), triglycerides (TG), total cholesterol (TC).