Variable | Project | Frequency | Composition ratio (%) |
Gender | Male | 484 | 45.7 |
| Female | 576 | 54.3 |
Age | 40~ | 223 | 21.0 |
| 51~ | 336 | 31.7 |
| 61~ | 342 | 32.3 |
| 71~ | 159 | 15.0 |
Nationality | Han nationality | 1045 | 98.6 |
| Minority | 15 | 1.4 |
marriage | Married | 920 | 86.8 |
| Widowed or divorced | 86 | 8.1 |
| Other | 54 | 5.1 |
Career | Farmer | 657 | 62.0 |
| Worker | 170 | 16.0 |
| Other | 233 | 22.0 |
Educational level | Elementary school and below | 657 | 62.0 |
| Junior high school | 300 | 28.3 |
| High school and above | 103 | 9.7 |
Living situation | Living alone | 58 | 5.5 |
| Non-independent | 1002 | 94.5 |
Medical payment method | Self-pay | 16 | 1.5 |
| Medical insurance | 872 | 82.3 |
| Other | 172 | 16.2 |
Monthly per capita income of the family (yuan) | <1000 | 234 | 22.1 |
1000 - 2000 | 492 | 46.4 | |
2000 - 3000 | 234 | 22.1 | |
>3000 | 100 | 9.4 | |
Number of risk factors | 3 | 65 | 20.8 |
| 4 | 46 | 14.7 |
| ≥5 | 24 | 7.7 |