ALB and Parkinson disease: The three groups differed in age, sex, BMI, PD genetic type, creatinine, serum uric acid, urea nitrogen, albumin, MoCA score, MoCA Cognitive status (Cutoff 26), HVLT-R Retention T-score, HVLT-R Discrimination Index T-score, and Symbol-Digit Modalities Test T-score (all p value < 0.05).