Sample demographics
| N | % | |
| Age, mean (SD) | 54.6 (14.8) | |
| Sex | ||
| Men | 534 | 42.2 |
| Women | 732 | 57.8 |
| Education level | ||
| No formal qualification | 9 | 0.7 |
| Primary school education | 7 | 0.6 |
| Secondary school education | 378 | 29.8 |
| University degree | 520 | 41.1 |
| Postgraduate degree | 352 | 27.8 |
| Self-report economic status | ||
| Low | 13 | 1.0 |
| Medium to low | 238 | 18.8 |
| Medium | 529 | 41.8 |
| Medium to high | 387 | 30.6 |
| High | 98 | 7.7 |