Demographic means (SD) for MMSE, CDR-SB, premorbid IQ and HADS scores, and median years of education, for overall and each BDNF group at baseline assessment.

Note: One-Way ANOVA indicated no significant differences between Val/Val homozygotes and Met carriers on any demographic or clinical characteristic, p’s 2 indicated that number of APOE ε4 carriers, p = .45, and number of females, p = 1.00, were not higher in Met carriers.Standardized Uptake Value Ratio; MMSE = Mini-Mental State Examination; CDR-SB = Clinical Dementia Rating Scale, Sum of Boxes Score; HADS-Depression = Hospital Anxiety and Depression Scale, Depression Subscale; HADS-Anxiety = Hospital Anxiety and Depression Scale, Anxiety Subscale.