Baseline Demographic, Clinical, and Neuroimaging Characteristics of Study Participants.

Values shown in parentheses are standard deviation, except where noted in the column header. Abbreviations in column headings are as follows: MCI, mild cognitive impairment; AD, Alzheimer’s disease; GDS, geriatric depression scale total score; MMSE, Mini-Mental Status Exam total score; ADAS-COG, Alzheimer’s disease assessment scale-cognitive subscale, total 11. Age and education level are measured in years.除列标题另有注明外，括号内所示数值为标准差（standard deviation）。列标题中的缩写含义如下：MCI为轻度认知障碍（mild cognitive impairment）；AD为阿尔茨海默病（Alzheimer’s disease）；GDS为老年抑郁量表总分（geriatric depression scale total score）；MMSE为简易精神状态检查表总分（Mini-Mental Status Exam total score）；ADAS-COG为阿尔茨海默病评定量表-认知分项（Alzheimer’s disease assessment scale-cognitive subscale），总项目数为11。年龄与受教育程度均以年为单位。