Table 1.
Characteristics of 129 participants including descriptive statistics
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sex, female | 70 (54.3) | 1 | ||||||||||||||||||||||
| 2 | APOE ε4 carriers | 36 (27.9) | −.02 | 1 | |||||||||||||||||||||
| 3 | Age, year | 72.1 ± 15.0 | .10 | −.04 | 1 | ||||||||||||||||||||
| 4 | Education, year | 16.9 ± 1.9 | .01 | −.14 | .18 | 1 | |||||||||||||||||||
| 5 | PiB DVR | 1.1 ± 0.2 | .18 | .37* | .20* | −.09 | 1 | ||||||||||||||||||
| 6 | Agreeableness | 35.8 ± 4.3 | .16 | −.10 | −.06 | −.09 | −.08 | 1 | |||||||||||||||||
| 7 | Conscientiousness | 35.1 ± 5.8 | −.04 | −.11 | −.07 | .09 | −.19* | *.32 | 1 | ||||||||||||||||
| 8 | Extraversion | 27.5 ± 6.1 | .18 | .04 | −.11 | −.14 | .05 | .14 | .02 | 1 | |||||||||||||||
| 9 | Neuroticism | 18.0 ± 4.8 | .03 | .10 | −.03 | −.17 | .03 | −.39* | −.37* | −.15 | 1 | ||||||||||||||
| 10 | Openness | 38.0 ± 6.2 | −.04 | .03 | −.15 | .13 | −.11 | .05 | .09 | .49* | −.12 | 1 | |||||||||||||
| 11 | MMSE | 29.0 ± 1.1 | .02 | −.01 | −.04 | .02 | .05 | .18 | −.05 | −.99 | −.16 | −.09 | 1 | ||||||||||||
| 12 | GDS | 3.7 ± 3.3 | .04 | .07 | −.04 | −.12 | .05 | −.08 | −.31* | −.11 | .55* | −.02 | −.07 | 1 | |||||||||||
| 13 | Processing speed | −0.0 ± 0.9 | .16 | −.01 | −.46* | −.02 | −.12 | .03 | .12 | .03 | .06 | .02 | .08 | .15 | 1 | ||||||||||
| 14 | Working memory | −0.4 ± 1.6 | .01 | .03 | −.35* | .96 | −.14 | −.02 | .11 | .09 | .04 | .26* | .22* | .07 | .19* | 1 | |||||||||
| 15 | Episodic memory | −0.1 ± 1.9 | −.02 | .08 | −.36* | .09 | −.02 | −.05 | .05 | .03 | −.09 | .27* | .19* | −.01 | .28* | .38* | 1 | ||||||||
| 16 | BMI | 25.8 ± 4.2 | −.14* | .09 | .01 | −.15 | −.06 | .04 | −.06 | .11 | .07 | −.06 | .08 | −.12 | −.17 | .05 | −.08 | 1 | |||||||
| 17 | Total Kcal | 6271.7 ± 5578.1 | −.03 | −.05 | −.02 | .05 | .01 | .19* | .11 | .05 | −.14 | .01 | −.01 | −.20* | .05 | −.04 | −.12 | .01 | 1 | ||||||
| 18 | Walking Miles | 7.4 ± 8.9 | .09 | −.02 | .01 | −.02 | −.04 | .20* | −.01 | .21* | −.16 | .16 | .13 | −.18* | .01 | .08 | .08 | −.14 | .38* | 1 | |||||
| 19 | Hours Seated | 15.8 ± 3.7 | −.09 | .05 | −.06 | .07 | −.07 | .03 | −.10 | −.09 | .03 | .01 | .07 | .05 | −.01 | −.09 | .02 | −.05 | −.21 | −.16 | 1 | ||||
| 20 | Hypertension | 46 (35.7) | −.16 | .08 | .10 | −.07 | .09 | .14 | .01 | −.04 | −.15 | −.08 | .09 | −.14 | −.22* | −.17 | −.15 | .35* | −.15 | −.21 | .19 | 1 | |||
| 21 | Diabetes | 9 (7.0) | −.05 | −.10 | .08 | .03 | −.08 | .15 | .02 | .04 | −.13 | −.06 | .98 | −.14 | −.01 | −.04 | −.08 | .13 | −.02 | .05 | −.14 | .28* | 1 | ||
| 22 | Hyperlipidemia | 47 (36.4) | .15 | .03 | .27* | −.09 | .14 | .06 | −.01 | −.02 | −.06 | −.11 | −.02 | .03 | −.02 | −.17 | −.04 | .08 | −.03 | −.12 | .17 | .29* | .04 | 1 | |
| 23 | Stroke/TIA | 16 (12.2) | .01 | .01 | .26* | .08 | .09 | .07 | −.04 | −.15 | .01 | −.18 | .03 | .06 | −.01 | −.12 | −.01 | .06 | .08 | −.17 | −.01 | .11 | −.07 | −.01 | 1 |
Note. APOE, apolipoprotein E; PiB, Pittsburgh compound B; DVR, distribution volume ratio; MMSE, mini-mental state examination; GDS, geriatric depression scale; TIA, transient ischemic attack; BMI, body mass index; Total Kcal, total calories expended by physical activities in last 2 weeks; Walking miles, incidental walking done in 1 week; Hours Seated; hours seated or lying down in 24 hours. Values in the third column represent the number (%) or mean ± SD. Values from the forth to the last columns represent correlation coefficients.
p<0.05 uncorrected for multiple comparisons. Big 5 inventory consists of 6–10. 13–15 mean composite z-scores. 20–23 as vascular risk factors are based on medical diagnosis.