Table 1.
Descriptive statistics for all study variables
| Variable | Mean (SD) or % (n) |
|---|---|
| Age (years) | 68.31 (10.67) |
| Age range | 34–98 |
| Sex (female) | 57% (677) |
| Race (Black) | 15.1% (179) |
| Race (otherwise identified) | 4.5% (53) |
| Race (white) | 80.4% (955) |
| Education (years) | 12.90 (2.89) |
| Cognitive functiona | 15.32 (4.20) |
| Depressive symptomsb | 1.24 (1.84) |
| Purpose in lifec | 4.68 (0.91) |
| AD threatd | 2.78 (1.01) |
| Beliefs about AD risk factorse | |
| Stress | 1.84 (0.78) |
| Genetics | 2.37 (0.67) |
| Modifiable factors | 2.30 (0.53) |
| Physical activity | 2.34 (0.68) |
| Mental activity | 2.58 (0.61) |
| Healthy diet | 2.35 (0.71) |
| Vitamins or supplements | 1.95 (0.70) |
| AD knowledgef | 2.39 (0.92) |
| Know someone with AD | |
| Family member (yes) | 12.9% (153) |
| Non-family member (yes) | 51.9 (616) |
Notes: N = 1,187. SD, standard deviation; AD, Alzheimer’s disease.
aScore on the modified Telephone Interview for Cognitive Status. Scores could range from 0 to 27.
bScore on the modified Center for Epidemiological Studies Depression scale (possible range 0–8).
cResponse scale ranged from 1 (strongly disagree) to 6 (strongly agree).
dResponse scale ranged from 1 (strongly disagree) to 5 (strongly agree).
eResponse scale range from 1 (not at all) to 3 (very important).
fSum of correct responses on four items.