| Characteristic | n = 2973 | |
| Sociodemographic characteristics | ||
| Mean age (years) (SD) | 64.4 (12) | |
| Male (%) | 67 | |
| Completed high school (%) | 18.7 | |
| Manual labourer (%) | 30.0 | |
| Business/professional/clerical work (%) | 17.7 | |
| Retired (%) | 42.8 | |
| Annual income (×1000 ¥)* (IQR) | 11.0 (6–20) | |
| Medical insurance held (%) | 57.1 | |
| Medical history and risk factors | ||
| Previous history of myocardial infarction (%) | 13.7 | |
| Previous diagnosis of coronary artery disease (%) | 42.4 | |
| Previous history of stroke (%) | 12.3 | |
| Previous history of heart failure (%) | 9.3 | |
| Known hypertension (%) | 59.7 | |
| Treated (%) | 83.2 | |
| Known diabetes (%) | 21.2 | |
| Known dyslipidaemia (%) | 32.9 | |
| Smoking status | ||
| Current (%) | 28.9 | |
| Former (%) | 23.4 | |
| Presenting condition | ||
| Systolic blood pressure (mm Hg) | 133.2 (27.3) | |
| Diastolic blood pressure (mm Hg) | 79.1 (15.5) | |
| Heart rate (beats per minute) | 78.7 (17.7) |
*¥, Chinese yuan rambindi, 1¥ = $0.14.