| Variable | Modality | Gender | Total | ||
| Male | Female | ||||
| Grade | Nurse | 64 | 86 | 150 | |
| Doctor | 35 | 45 | 80 | ||
| Age in years | Less to 25 | 8 | 21 | 29 | |
| Between 25 and 55 | 75 | 101 | 176 | ||
| Upper to 55 | 16 | 9 | 25 | ||
| Marital status | Single | 32 | 48 | 80 | |
| Married | 67 | 83 | 150 | ||
| Seniority in years | Less to 5 | 25 | 46 | 71 | |
| Between 5 and 20 | 42 | 54 | 96 | ||
| Upper to 20 | 32 | 31 | 63 | ||
| Total | 99 | 131 | 230 | ||