Table 1 Sociodemographic characteristics of main study participants (n = 600)
Characteristics | N(%) |
|---|---|
Sex | |
 Male | 275 (45.8) |
 Female | 325 (54.2) |
Age | |
  < 45 | 182 (30.3) |
 45–59 | 167 (27.8) |
 60–69 | 251 (41.8) |
Educational attainment | |
 Junior high school and below | 176 (29.3) |
 Senior high school | 193 (32.2) |
 college or university graduate | 231 (38.5) |