ALB and Cognitive impairment: Based on a national population-based study in England among 1752 older adults aged 65 years and older, it was reported that the odds ratios (95% confidence intervals) for cognitive impairment in the first (2.2–3.8 g/dL), second (3.9–4.0 g/dL), and third (4.1–4.3 g/dL) quartiles of serum albumin compared with the fourth quartile (4.4–5.3 g/dL) were 2.5 (1.3–5.1), 1.7 (0.9–3.5), and 1.5 (0.7–2.9) [71].