Table 1.

Characteristics of the cohort at baseline

Variable	Resultsa
Age, years	79.7 ± 7.3
Women, n (%)	704 (74.2)
White non-Hispanic, n (%)	837 (88.2)
Education, years	14.5 ± 3.2
MMSEb, marks out of 30	27.9 ± 2.0
Global Cognition, composite	0.11 ± 0.53
Body mass index	27.7 ± 5.31
Physical activity, hours/week	3.2 ± 3.53
Existing illnesses, %
Myocardial infarction	11.3
Congestive heart failure	5.2
Claudication	6.7
Diabetes	13.7
Smoking	40.3
Hypertension	58.5

^aData are mean ± SD unless otherwise indicated.

^bMini Mental Status Examination.