Table 1.
Demographic characteristics of participants.
| Variables | Cognitively normal group (n = 195) | MCI group (n = 102) | t /χ2-value | P |
|---|---|---|---|---|
| Sex, n (%) | 2.680 | 0.102 | ||
| Female | 103 (52.8) | 64 (62.7) | ||
| Age, years (mean ± SD) | 70.6 (4.6) | 71.4 (5.2) | −1.330 | 0.185 |
| Education level, n (%) | 19.820 | 0.000 | ||
| Low (high school degree and below) | 138 (70.8) | 95 (93.1) | ||
| High (college degree and above) | 57 (29.2) | 7 (6.9) | ||
| Married, n (%) | 171 (87.7) | 94 (92.2) | 1.389 | 0.239 |
| Alcohol consumption, n (%) | 0.098 | 0.952 | ||
| Current | 12 (6.2) | 6 (5.9) | ||
| Former | 7 (3.6) | 3 (2.9) | ||
| Never | 176 (90.3) | 93 (91.2) | ||
| Smoking, n (%) | 0.149 | 0.699 | ||
| Current | 24 (12.3) | 11 (10.8) | ||
| Never | 171 (87.7) | 91 (89.2) | ||
| Hypertension, n (%) | 83 (42.6) | 56 (54.9) | 4.094 | 0.043 |
| Diabetes, n (%) | 27 (13.8) | 22 (21.6) | 2.899 | 0.089 |
| Hyperlipidemia, n (%) | 18 (9.2) | 9 (8.8) | 0.013 | 0.908 |
| CVD, n (%) | 16 (8.2) | 9 (8.8) | 0.033 | 0.855 |
SD, standard deviation; CVD, cardiovascular disease (stroke, coronary heart disease, and heart failure).
Values in bold mean statistically significant (p < 0.05).