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Mean and 95% CI for baseline characteristics on age, social support, job satisfaction, job demands and job control.
| Variables | n | Mean | 95% CI |
|---|---|---|---|
| Age | 954 | 40.7 | 39.99–41.33 |
| Directive support (1–5) | 957 | 2.38 | 2.33–2.42 |
| Nondirective support (1–5) | 957 | 3.73 | 3.68–3.78 |
| Job satisfaction (1–5) | 956 | 4.32 | 4.28–4.36 |
| Job demands (5–20) | 944 | 13.25 | 13.09–13.41 |
| Job control (5–20) | 945 | 17.66 | 17.54–17.80 |
