Table 1. Demographic characteristics of subjects (n = 113) .
| Variables | Groups | |||
| Intervention | % | Control | % | |
| Sex | ||||
| Male | 26 | 46.43 | 30 | 52.63 |
| Female | 30 | 53.57 | 27 | 47.37 |
| Education | ||||
| Elementary school | 22 | 39.29 | 20 | 35.09 |
| Junior high school | 6 | 10.71 | 10 | 17.54 |
| Senior high school | 16 | 28.57 | 14 | 24.56 |
| College graduate | 12 | 21.43 | 7 | 12.28 |
| Occupation | ||||
| Farmer | 11 | 19.64 | 10 | 17.54 |
| Labor | 10 | 17.86 | 9 | 15.79 |
| Merchant | 3 | 5.36 | 2 | 3.51 |
| Civil servant | 1 | 1.79 | 4 | 7.02 |
| Driver | 0 | 0 | 1 | 1.75 |
| Office worker | 4 | 7.14 | 4 | 7.02 |
| Teacher | 1 | 1.79 | 0 | 0 |
| College student | 0 | 0 | 1 | 1.75 |
| Self employed | 6 | 10.71 | 6 | 10.53 |
| Housewife | 9 | 16.07 | 11 | 19.30 |