ALB and delirium: Age (p-value: 0.0001), age ≥ 90 years (p-value: 0.0001), male (p-value: 0.017), hemiarthroplasty surgery (p-value: 0.043), presence of delirium (p-value: 0.029), presence of ≥ 3 comorbidities (p-value: 0.017), ASA score of 4 (p-value: 0.0001), length of hospital stay (p-value: 0.015), admission to ICU (p-value: 0.011), length of stay in ICU (p-value: 0.0001), preoperative low albumin (p-value: 0.003), and high BUN levels (p-value: 0.011) all reached statistical significance for one-year mortality in the univariate analysis conducted (Table 2).