| Demographic characteristics | Characteristics | Frequency | Percent |
|---|---|---|---|
| Sex | Male | 37 | 12.3 |
| Female | 264 | 87.7 | |
| Age | ≤ 20 | 54 | 17.9 |
| 21–40 | 247 | 80.1 | |
| Marital status | Single | 127 | 42.2 |
| Married | 174 | 57.8 | |
| Educational level | Secondary school | 187 | 62.12 |
| Higher than secondary school | 114 | 37.9 | |
| Years of service | ≤1 | 36 | 12.0 |
| 1–2 | 42 | 14.0 | |
| > 2 | 223 | 74.1 | |
| Certified in food preparation and handling | No | 264 | 87.7 |
| Yes | 37 | 12.3 | |
| Medical check-up | No | 36 | 12.0 |
| Yes | 265 | 88.0 |