Table 1.
Description of Measures and Sample (N = 6,053)
| Variable (year) | Categories or range | % or mean | N |
| Gender | Male | 83.1 | 5,030 |
| Female | 16.9 | 1,023 | |
| Age (2007) | 54–68 years | 62.5 | 6,053 |
| Educational level (1989) | University | 18.8 | 1,135 |
| Vocational training | 54.0 | 3,270 | |
| Upper secondary education | 7.2 | 435 | |
| Lower secondary education | 20.0 | 1,213 | |
| Occupational category (1998) | Senior executive | 39.8 | 2,410 |
| Middle executive | 51.8 | 3,133 | |
| Employee | 3.5 | 212 | |
| Worker | 4.9 | 298 | |
| Poor self-perceived health (1998) | No | 63.7 | 3,857 |
| Yes | 36.3 | 2,196 | |
| SF-36 MCS (2007) | 6.1–71.3 | 49.1 | 6,053 |
| SF-36 PCS (2007) | 13.6–68.9 | 50.3 | 6,053 |
| Job content questionnaire | |||
| Psychological demands (1998) | 9–36 | 22.7 | 6,053 |
| Decision latitude (1998) | 24–96 | 72.5 | 6,053 |
| Skill discretion | 12–48 | 35.4 | 6,053 |
| Decision authority | 12–48 | 37.1 | 6,053 |
| Social support at work (1998) | 8–32 | 22.0 | 6,053 |
| Supervisor support | 4–16 | 10.2 | 6,053 |
| Coworker support | 4–16 | 11.8 | 6,053 |
| Physical demands (1998) | 5–20 | 7.7 | 6,053 |
| Effort-reward imbalance questionnaire | |||
| Effort (1998) | 6–30 | 12.9 | 6,053 |
| Reward (1998) | 11–55 | 46.6 | 6,053 |
| Esteem | 5–25 | 21.7 | 6,053 |
| Job promotion | 4–20 | 15.9 | 6,053 |
| Job security | 2–10 | 8.9 | 6,053 |
| Overcommitment (1998) | 6–24 | 3.6 | 6,053 |