Potentially modifiable continuously-measured characteristics of reverters and non-reverters at baseline and follow-upa.

BP = blood pressure; BMI = body mass index; GDS = Geriatric Depression Scale.aData presented as mean (SD).bMaximum n, with small amounts of data missing for some factors.cAverage days/week of participation in mental activities.dNo. physical activities participated in.BP=血压（blood pressure），BMI=身体质量指数（body mass index），GDS=老年抑郁量表（Geriatric Depression Scale）。 a. 数据以均值（标准差，SD）形式呈现。 b. 最大样本量，部分指标存在少量数据缺失。 c. 每周参与脑力活动的平均天数。 d. 参与的体育活动数量。