Demographic characteristics of the participants aged ≥14 years
| Characteristic | No | % |
| Total | 2558 | |
| Township | ||
| A | 524 | 20.5 |
| B | 520 | 20.3 |
| C | 967 | 37.8 |
| D | 547 | 21.4 |
| Sex | ||
| Female | 1664 | 65.1 |
| Male | 894 | 34.9 |
| Age (years) | ||
| 14–24 | 409 | 16.0 |
| 25–34 | 577 | 22.6 |
| 35–44 | 760 | 29.7 |
| 45–54 | 545 | 21.3 |
| ≥55 | 267 | 10.4 |
| Ethnicity | ||
| Han | 70 | 2.7 |
| Yi | 2481 | 97.0 |
| Other | 3 | 0.1 |
| Missing | 4 | 0.2 |
| Education | ||
| Illiterate | 1656 | 64.7 |
| Primary school and above | 900 | 35.2 |
| Missing | 2 | 0.1 |
| Occupation | ||
| Farmer | 2344 | 91.6 |
| Student | 155 | 6.1 |
| Other | 37 | 1.4 |
| Missing | 22 | 0.9 |
| Annual income | ||
| <1000 | 405 | 15.8 |
| 1000–2999 | 906 | 35.4 |
| 3000–4999 | 590 | 23.1 |
| 5000–9999 | 309 | 12.1 |
| ≥10 000 | 324 | 12.7 |
| Missing | 24 | 0.9 |
| Marital status | ||
| Unmarried | 420 | 16.4 |
| Married | 1913 | 74.8 |
| Divorced/Widowed | 222 | 8.7 |
| Missing | 3 | 0.1 |