| Variable | Modality | SEXE | Total with % | |
| Male | Female | |||
| Age | Under 25 years | - | 3 | 3 |
| Between 25 & 35 years | 41 | 43 | 84 | |
| Between 35 & 45 years | 9 | 4 | 13 | |
| Civil status | Single | 34 | 28 | 62 |
| Married | 15 | 20 | 35 | |
| Widower | 1 | 2 | 3 | |
| Level of study reached | BAC + 3 years | 36 | 35 | 71 |
| BAC + 5 years | 4 | 5 | 9 | |
| More than 5years after BAC | 10 | 10 | 20 | |
| Socio-economic level | Good | 11 | 14 | 25 |
| Average | 39 | 36 | 75 | |
| Work time | Day | 13 | 12 | 25 |
| Day/Night | 36 | 35 | 71 | |
| Night | 1 | 3 | 4 | |
| Seniority | Under 4 years | 23 | 20 | 43 |
| Between 4 & 8 years | 17 | 22 | 39 | |
| Between 8 & 12 years | 5 | 5 | 10 | |
| More than 12 years | 5 | 3 | 8 | |
| Number of hours/week | Between 35 & 55 | 46 | 43 | 89 |
| Between 55 & 75 | 4 | 7 | 11 | |
| Total | 50 | 50 | 100 | |