Sociodemographic, lifestyle and health characteristics of reverters and non-reverters at baseline^a.

<p>BMI = body mass index; BP = blood pressure; BSIT = Brief Smell Identification Test; eGFR = estimated glomerular filtration rate; GAS = Goldberg Anxiety Scale; GDS = Geriatric Depression Scale.</p>a<p>Data presented as No. (%) unless otherwise indicated.</p>b<p>Maximum n, with small amounts of missing data for some factors.</p>c<p>Any of cardiac arrhythmia, cardiomyopathy, or heart valve disease.</p>d<p>Average days/week of participation in mental activities.</p>e<p>Number of different physical activities participated in.</p>f<p>Arbitrary units, averaged for the two eyes.