APOE and depressive disorder: Along with imaging data, the dataset offers several clinically relevant metadata fields: Weight, Age, APOE-A1, APOE-A2 (Apolipoprotein E alleles associated with AD risk), MMSE (Mini-Mental State Examination), GDSCALE (Geriatric Depression Scale), Global CDR (Clinical Dementia Rating), FAQ-Score (Functional Activities Questionnaire), and NPIQ-Score (Neuropsychiatric Inventory Questionnaire).