ALB and Cognitive impairment: Barthel median at admission to the rehabilitation unit was 35 (IQR 20, 40), cognitive impairment (MMSE < 24) was presented by 64% of patients with hip fracture, Charlson comorbidity index (CCI) ≥ 2 was found for 48%, and low albumin blood serum levels (<3.5 g/dl) were detected for 59.2% of them (95% CI, 45%, 72%).