Sociodemographic characteristics of the participants (N=416)
| Characteristics | n | % |
| Age (year) | ||
| 60–69 | 308 | 74.0 |
| 70–79 | 83 | 20.0 |
| ≥80 | 25 | 6.0 |
| Sex | ||
| Male | 251 | 60.3 |
| Female | 165 | 39.7 |
| Marital status | ||
| Married | 389 | 93.5 |
| Widowed | 27 | 6.5 |
| Family size | ||
| ≤4 | 167 | 40.1 |
| >4 | 249 | 59.9 |
| Literacy | ||
| Unable to read and write | 406 | 97.6 |
| Able to read and write | 10 | 2.4 |
| Living arrangement | ||
| Living with family | 362 | 87.0 |
| Living alone | 54 | 13.0 |