Table 1.
Baseline characteristics of study subjects
| Characteristics | CHD, n(%) | Non-CHD, n(%) | χ2 | p-value |
|---|---|---|---|---|
| Gender | 0.000 | 1.000 | ||
| Male | 318 (54.4) | 318 (54.4) | ||
| Female | 267 (45.6) | 267 (45.6) | ||
| Age | 0.777 | 0.378 | ||
| < 65 | 271 (46.3) | 256 (43.8) | ||
| ≥ 65 | 314 (53.7) | 329 (56.2) | ||
| Marital status | 0.380 | 0.538 | ||
| Marriage | 536 (91.6) | 530 (90.6) | ||
| Single and others | 49 (8.4) | 55 (9.4) | ||
| Education level | 1.108 | 0.575 | ||
| Below primary school | 260 (44.4) | 263 (45.0) | ||
| Middle school | 257 (43.9) | 265 (45.3) | ||
| College or higher | 68 (11.6) | 57 (9.7) |
CHD coronary heart disease, Non-CHD None coronary heart disease