| Variable | Category | Mean | ±p-Value |
| Sex | Male | 16.62 | 0.803 |
| Female | 16.36 | ||
| Age (year) | 18 to 24 | 14.5 | 0.844 |
| 25 to 34 | 16.38 | ||
| 35 to 44 | 16.65 | ||
| 45+ | 16.36 | ||
| Professional Education level | Certificate | 15.67 | 0.006* |
| Diploma | 16.02 | 0.907∫ | |
| Degree | 19.5 | 0.005¶ | |
| Job title | Registered Nurse | 16.68 | 0.254 |
| Enrolled Nurse | 15.67 |