Demographic characteristics of study population n=32
| Characteristic* | ||
| Mean age (SD) | 70.8 | (15.8) |
| Male | 61.8 | (17.0) |
| Female | 75.5 | (13.2) |
| Gender | ||
| Male | 11 | 34.4 |
| Female | 21 | 65.6 |
| Marital status | ||
| Single | 5 | 15.6 |
| Married | 12 | 37.5 |
| Divorced | 3 | 9.4 |
| Widowed | 12 | 37.5 |
| Highest education level | ||
| Primary school | 8 | 25 |
| Compulsory school | 6 | 18.8 |
| Vocational training | 17 | 53.1 |
| Tertiary education | 1 | 3.1 |
| Professional activity | ||
| In paid employment | 6 | 18.8 |
| Retired | 24 | 75 |
| Disability pension | 2 | 6 |
* Values given are either mean and SD or absolute and relative frequencies.