Table 1 Baseline characteristics of participants in the different groups
Variables | All (%) | High-risk areas (%) | Non-high-risk areas (%) | |||
|---|---|---|---|---|---|---|
Intervention group | Control group | Intervention group | Control group | Intervention group | Control group | |
Sex | ||||||
 Male | 44.2 | 45.9 | 43.0 | 46.2 | 45.0 | 45.7 |
 Female | 55.8 | 54.1 | 57.0 | 53.8 | 55.0 | 54.3 |
Age group | ||||||
 60–69 | 28.7 | 28.1 | 25.4 | 27.8 | 30.7 | 28.2 |
 50–59 | 36.9 | 35.0 | 37.7 | 34.3 | 36.4 | 35.6 |
 40–49 | 34.4 | 36.9 | 36.9 | 37.9 | 32.9 | 36.2 |
Ethnicity | ||||||
 Han | 99.6 | 99.8 | 99.9 | 99.9 | 99.5 | 99.6 |
 Others | 0.4 | 0.2 | 0.1 | 0.1 | 0.5 | 0.4 |
Marriage | ||||||
 Married | 94.5 | 95.3 | 94.1 | 95.4 | 94.7 | 95.2 |
 Never married | 0.9 | 0.8 | 0.6 | 0.5 | 1.1 | 1.1 |
 Divorced | 0.9 | 0.7 | 0.4 | 0.4 | 1.1 | 0.9 |
 Widow | 3.7 | 3.2 | 4.9 | 3.7 | 3.1 | 2.8 |
Education | ||||||
 No schooling | 10.3 | 9.5 | 16.8 | 14.1 | 6.6 | 6.0 |
 Primary school | 33.6 | 37.8 | 34.3 | 42.2 | 33.1 | 34.2 |
 Middle school | 46.4 | 45.3 | 47.7 | 42.9 | 45.7 | 47.3 |
 College and above | 9.7 | 7.3 | 1.2 | 0.8 | 14.6 | 12.5 |
Smoking | ||||||
 Never | 79.0 | 78.1 | 74.1 | 74.4 | 81.7 | 80.9 |
 Ever | 21.0 | 21.9 | 25.9 | 25.6 | 18.3 | 19.1 |
Alcohol drinking | ||||||
 No | 87.3 | 88.4 | 88.2 | 90.7 | 86.7 | 86.6 |
 Yes | 12.7 | 11.6 | 11.8 | 9.3 | 13.3 | 13.4 |