Table 1.
Comparison of baseline data of the two group patients
| Normal group (n = 344) | Cognitive impairment group (n = 473) | P | |
|---|---|---|---|
| Age (years) | 59.54 ± 9.77 | 66.12 ± 9.62 | < 0.001* |
| Gender (male) | 234 (68%) | 312 (65%) | 0.286 |
| Education level | < 0.001* | ||
| Illiterate | 40 (11.6%) | 130 (27.5%) | |
| Elementary school | 112 (32.6%) | 141 (29.8%) | |
| Secondary education or higher | 192 (55.8%) | 202 (42.7%) | |
| BMI | 25.89 ± 3.54 | 25.35 ± 3.67 | 0.31 |
| Smoke | 80 (23.26%) | 106 (22.41%) | 0.156 |
| Drink | 73 (21.22%) | 96 (20.30%) | 0.867 |
| Hypertension | 201 (58.43%) | 309 (65.32%) | 0.573 |
| Diabetes | 95 (27.61%) | 119 (25.20%) | 0.479 |
| CHD | 24 (6.98%) | 44 (9.3%) | 0.289 |
*means that there is a statistically significant difference between the two group. Normal group refers to patients with normal cognitive function; the cognitive impairment group represents the group of patients with cognitive impairment