| Variables | No. of Subjects | Percent (%) | Variables | No. of Subjects | Percent (%) |
| Age (years) |
|
| Education |
|
|
| 20- | 1 | 1.0 | Illiteracy | 2 | 2.0 |
| 30- | 8 | 8.1 | Primary school | 35 | 35.4 |
| 40- | 20 | 20.2 | Middle or high school | 57 | 57.6 |
| 50- | 40 | 40.4 | College or higher | 5 | 5.1 |
| 60- | 24 | 24.2 | Gender |
|
|
| 70- | 5 | 5.1 | Male | 48 | 48.5 |
| 80- | 1 | 1.0 | Female | 51 | 51.5 |
| Occupation |
|
| Marital status |
|
|
| Cadres | 1 | 1.0 | Married | 97 | 98.0 |
| Workers | 15 | 15.2 | Unmarried | 1 | 1.0 |
| Peasants | 35 | 35.4 | Death of a spouse | 1 | 1.0 |
| Teachers | 4 | 4.0 |
|
|
|
| Self-employed | 13 | 13.1 |
|
|
|
| Others | 31 | 31.3 |
|
|
|