Descriptive statistics of the sample, means (SD) or %
| GPs (n=1121) | Specialists (n=297) | |||||||
|---|---|---|---|---|---|---|---|---|
| 2000 | 2004 | 2008 | 2010 | 2000 | 2004 | 2008 | 2010 | |
| Age | 43.4 (9.4) | 43.9 (8.8) | 44.3 (8.0) | 45.9 (8.5) | 43.4 (7.8) | 45.2 (8.0) | 45.9 (9.0) | 47.2 (8.9) |
| Sex | ||||||||
| Male | 68.5 | 69.4 | 70.9 | 71.1 | 71.3 | 71.5 | 71.1 | 71.3 |
| Female | 31.5 | 30.6 | 29.1 | 28.9 | 28.7 | 28.5 | 28.9 | 28.7 |
| Work contract | ||||||||
| Permanent | 83.8 | 93.6 | 94.5 | 93.4 | 74.1 | 85.7 | 78.6 | 78.3 |
| Fixed term | 16.2 | 6.4 | 5.5 | 6.6 | 25.9 | 14.3 | 21.4 | 21.7 |
| Job demands (1–5) | 3.97 (0.7) | 3.70 (0.7) | 3.70 (0.8) | 3.78 (9.8) | 3.59 (0.8) | 3.24 (0.9) | 3.40 (0.8) | 3.30 (0.9) |
| Job control (1–5) | 3.94 (0.5) | 4.00 (0.4) | 4.03 (0.4) | 3.94 (0.5) | 4.07 (0.4) | 3.96 (0.5) | 4.07 (0.5) | 3.93 (0.6) |
| ERI (1–5) | 1.39 (0.5) | 1.30 (0.3) | 1.25 (0.3) | 1.37 (0.4) | 1.42 (0.3) | 1.33 (0.3) | 1.28 (0.4) | 1.42 (0.4) |
| Psychological distress (GHQ) (0–4) | 2.02 (0.4) | 1.97 (0.4) | 1.92 (0.4) | – | 1.93 (0.4) | 1.93 (0.5) | 1.92 (0.4) | – |
| Sleeping problems (1–6) | 3.41 (1.5) | 3.28 (1.5) | 3.16 (1.5) | 3.49 (1.5) | 3.45 (1.4) | 3.37 (1.6) | 3.43 (1.5) | 3.51 (1.7) |
| n (participants) | 272 | 250 | 310 | 289 | 58 | 63 | 84 | 92 |
ERI, effort-reward-imbalance; GHQ, General Health Questionnaire; GP, general practitioner.