Table 1.
Participant Characteristics
| Baseline (N = 173) | Longitudinal (N = 91) | |
|---|---|---|
| Age | ||
| Mean (SD) | 60.7 years (±7.81) | 64.9 years (± 7.36) |
| Number of follow-up assessments | ||
| Mean (SD) | -- | 3.39 (1.20) |
| Mean Years of Education (SD) | 15.91 years (±2.55) | 15.71 years (± 2.58) |
| APOE Carriers, n (%)* | N = 172* | |
| ε2,2 | 2 (1.2) | 2 (2.2) |
| ε2,3 | 15 (8.7) | 7 (7.7) |
| ε2,4 | 6 (3.5) | 3 (3.3) |
| ε3,3 | 94 (54.3) | 52 (57.1) |
| ε3,4 | 44 (25.4) | 21 (23.0) |
| ε4,4 | 11 (6.4) | 4 (4.4) |
| Gender, n (%) | ||
| Males | 61 (35.3) | 34 (37.4) |
| Females | 112 (64.7) | 57 (62.6) |
| Race, n (%) | ||
| White | 151 (87.3) | 85 (93.4) |
| African American | 32 (12.1) | 6 (6.6) |
| Body Mass Index (Mean, SD) | 27.67 (5.2) | 27.99 (5.8) |
| Geriatric Depression Scale-Short Form | ||
| Mean (SD) | 0.88 (0.9) | 0.68 (0.71) |
| Parental History of AD, n (%) | 91 (52.6) | 40 (44.0) |
| NHSEQ Physical Activity (Mean, SD) | ||
| Weekly total physical activity (ordinal) | 13.81 (8.7) | 14.02 (7.91) |
| MET minutes/week | 1748.3 (1786.6) | 1716.84 (1716.86) |
*
One participant did not have genotype data.