Table 1 Baseline characteristics of study subjects
From: Association of circular RNAs and environmental risk factors with coronary heart disease
Characteristics | CHD, n(%) | Non-CHD, n(%) | χ2 | p-value |
|---|---|---|---|---|
Gender | Â | Â | 0.000 | 1.000 |
 Male | 318 (54.4) | 318 (54.4) |  |  |
 Female | 267 (45.6) | 267 (45.6) | ||
Age | Â | Â | 0.777 | 0.378 |
  < 65 | 271 (46.3) | 256 (43.8) |  |  |
  ≥ 65 | 314 (53.7) | 329 (56.2) |  |  |
Marital status | Â | Â | 0.380 | 0.538 |
 Marriage | 536 (91.6) | 530 (90.6) |  |  |
 Single and others | 49 (8.4) | 55 (9.4) | ||
Education level | Â | Â | 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) |