Midlife cardiovascular characteristics among demented, MCI, and control subjects
| Characteristic | % Demented subjects, n =57 | % Subjects with MCI, n = 82 | % Control subjects, n = 1270 | p Value | Test for linear trend† |
|---|---|---|---|---|---|
| χ2 Test was used. | |||||
| * Low indicates systolic blood pressure <160 mmHg and cholesterol <6.5 mmol/L; single risk factor, systolic blood pressure ≥160 mmHg or cholesterol ≥6.5 mmol/L; combined, systolic blood pressure ≥160 mmHg and cholesterol ≥6.5 mmol/L. | |||||
| † p Value for between-group difference. | |||||
| MCI = mild cognitive impairment. | |||||
| Cholesterol ≥6.5 mmol/L (high) | 73.7 | 68.3 | 52.4 | <0.001 | <0.001 |
| Systolic blood pressure | |||||
| <140 mmHg (normal) | 22.8 | 43.9 | 44.9 | 0.003 | <0.001 |
| 140–159 mmHg (borderline) | 43.9 | 29.3 | 36.2 | ||
| ≥160 mmHg (high) | 33.3 | 26.8 | 18.9 | ||
| Risk groups* | |||||
| Low | 22.8 | 22.0 | 40.3 | <0.001 | <0.001 |
| Single risk factor | 47.4 | 61.0 | 48.0 | ||
| Combined risk | 29.8 | 17.1 | 11.7 | ||