Demographic characteristics of the spouses
| Subjects | 14 |
| Women/men | 5/9 |
| Age years | 68 (40–87) |
| Level of education | |
| Elementary school | 1 |
| High school | 8 |
| College/university | 5 |
| Employed/retired | 7 |
| Families with children aged ≤18 years | 4 |
Data are presented as n or median (range).