Table 1.

Sample description (N = 100)

Variables	Mean	SD	Range
Age (years)	70.8	4.1	61–81
Gender (n, %)
Male	59 (59 %)
Education (years)	14.7	4.4	2–26
Tests of cognitive performance
Trail Making Test A (s)	47.4	18.8	19–119
Trail Making Test B (s)	112.9	59.3	26–300
Word List Learning Task	21.1	3.7	8–28
Word List Recall	7.5	1.7	0–10
Logical Memory I	25.7	6.8	4–39
Logical Memory II	22.9	7.1	6–39
Digit Span Forward	8.6	2.2	3–12
Digit Span Backward	6.6	2.1	3–12
SF-36 Physical Functioning (0–100)a	86.0	13.8	35–100
Depression (GDS)	0.9	1.5	0–7

^aHigher scores indicate better physical functioning