Table 1.

Demographics and clinical characteristics by sex

Variable	Females (n = 1,537)	Males (n = 1,444)	Sex Comparison
Race			χ2 = 25.7, p < 0.001
Black	692 (45.0%)	519 (35.8%)
White	845 (55.0%)	929 (64.2%)
Age	73.8 (2.9)	73.5 (2.9)	t = 3.25, p < 0.001, d = 0.13
Body Mass Index	27.1 (4.0)	27.6 (5.5)	t = 3.17, p = 0.002, d = 0.12
Site			χ2 = 0.02, p = 0.892
Memphis	770 (50.1%)	730 (50.4%)
Pittsburgh	767 (49.9%)	718 (49.6%)
Education Attained			χ2 = 57.1, p < 0.001
Not Completed High School	381 (26.3%)	600 (39.0%)
Completed High School	382 (26.4%)	367 (23.9%)
Greater than High School	685 (47.3%)	570 (37.1%)
APOE Grouping			χ2 = 6.37, p = 0.041
APOE ε2	233 (16.1%)	205 (13.3%)
APOE ε3	846 (58.4%)	894 (58.2%)
APOE ε4	369 (25.5%)	438 (28.5%)
Health Characteristics
Coronary Heart Disease	338 (23.3%)	170 (11.1%)
Congestive Heart Failure	29 (2.0%)	13 (0.8%)
Diabetes	255 (17.6%)	205 (13.3%)
Pulmonary Disease	387 (26.7%)	233 (15.2%)
Cerebrovascular Disease	99 (6.8%)	116 (7.5%)
Peripheral Vascular Disease	92 (6.4%)	58 (3.8%)
Composite Health Score			χ2 = 103.7, p < 0.001
Zero	637 (44.0%)	924 (60.1%)
One	528 (36.5%)	463 (30.1%)
Two	196 (13.5%)	121 (7.9%)
Three or More	87 (5.9%)	29 (2.0%)
Walking Minutes
Year 1	111 (281)	168 (388)
Year 2	105 (214)	154 (284)
Year 3	72 (134)	123 (198)
Year 4	70 (169)	111 (267)
Year 5	67 (142)	103 (172)
Year 6	53 (130)	96 (222)
Year 7	54 (137)	82 (145)
Year 8	55 (112)	85 (157)
Year 9	64 (165)	92 (222)
Year 10	54 (107)	82 (150)

Data are displayed as number (percentage) or mean (standard deviation) where appropriate. The health composite is the total number of underlying health factors listed under health characteristics