| Variable | Value (%) | |
| No. of subjects | 361 | |
| Age in years | 26.1 (5.4) | |
| Female | 173 (47.9) | |
| Place of birth |
| |
| Italy | 348 (96.7) | |
| Elsewhere | 13 (3.3) | |
| School Attended |
| |
| School of dental medicine | 129 (35.7) | |
| Healthcare profession school (dental hygienists) | 145 (40.2) | |
| postgraduate dental school | 87 (24.1) | |