| Variables | Categories | Frequency | Percentage |
| Marital status | Unmarried | 5 | 2.7 |
| Married | 155 | 84.2 | |
| Divorced | 8 | 4.3 | |
| Widowed | 16 | 8.7 | |
| Total | 184 | 100 | |
| Age | 15 - 29 years old | 57 | 31 |
| 30 - 60 years old | 127 | 69 | |
| Total | 184 | 100 | |
| Work load | High work load | 156 | 84.8 |
| Low work load | 28 | 15.2 | |
| Total | 184 | 100 |