Characteristics of the study sample
| Variable | |
| Gender | |
| Male, n (%) | 1699 (31.5) |
| Female, n (%) | 3689 (68.5) |
| Age (years), M (SD) | 44.8 (11.2) |
| Educational attainment | |
| Primary/lower secondary, n (%) | 87 (1.6) |
| Upper secondary, n (%) | 1006 (18.7) |
| University/college ≤4 years, n (%) | 2125 (39.4) |
| University/college >4 years, n (%) | 2170 (40.3) |
| Employment sector | |
| Private corporation, n (%) | 368 (6.8) |
| Local government, n (%) | 3469 (64.4) |
| Central government, n (%) | 1551 (28.8) |
| Work division | |
| Transportation/manufacturing, n (%) | 285 (5.3) |
| Public administration/services, n (%) | 4299 (79.8) |
| Health services, n (%) | 762 (14.1) |
| Other services, n (%) | 42 (0.8) |
n=5388.
M, mean; SD, Standard deviation.