ALB and Cognitive impairment: Table 2 presents the biochemical and hematological results of the participants. Predialysis creatinine (6.77 ± 1.93 mg/dL vs. 9.13 ± 2.28 mg/dL, p < 0.05), albumin (3.68 ± 0.26 g/dL vs. 3.90 ± 0.30 g/dL, p < 0.05), phosphorus (4.55 ± 1.10 mg/dL vs. 5.32 ± 1.56 mg/dL, p < 0.05) and hemoglobin (9.94 ± 1.34 g/dL vs. 10.16 ± 1.29 g/dL, p < 0.05) levels were lower in the cognitive impairment group than in the control group. The estimated GFR was higher in the cognitive impairment group (7.70 ± 3.03 mL/min/1.73 m2 vs. 6.36 ± 2.89 mL/min/1.73 m2, p < 0.05).