Characteristics of the participants (N=11 908)
| N | Per cent | Mean | SD | |
|---|---|---|---|---|
| Questionnaire round | ||||
| 2000 | 4692 | 39.4 | ||
| 2005 | 7216 | 60.6 | ||
| Age, years | 11 908 | 40.9 | 11.1 | |
| Gender | ||||
| Men | 6400 | 53.8 | ||
| Women | 5508 | 46.3 | ||
| Smoking | ||||
| Yes | 3853 | 32.6 | ||
| Ex-smoker | 2785 | 23.5 | ||
| No, never | 5198 | 43.9 | ||
| Physical activity during leisure | ||||
| Low | 3748 | 31.7 | ||
| Moderate | 6077 | 51.4 | ||
| High | 1997 | 16.9 | ||
| BMI (kg/m2) | 11 718 | 24.8 | 3.9 | |
| Psychosocial work factors (0–100) | ||||
| Emotional demands | 11 725 | 30.3 | 24.5 | |
| Influence at work | 11 738 | 49.5 | 26.8 | |
| Support from colleagues | 11 381 | 75.7 | 21.9 | |
| Support from superior | 11 565 | 69.4 | 26.2 | |
| Musculoskeletal pain intensity last 3 months (0–9) | ||||
| Low back | 9069 | 2.1 | 2.4 | |
| Neck-shoulder | 9062 | 2.2 | 2.3 | |
| Mental health (0–100) | 11 808 | 84.5 | 13.1 | |
| Socioeconomic status | ||||
| Higher professionals and managers | 1681 | 14.1 | ||
| Lower professionals and managers | 2051 | 17.2 | ||
| Clerical, services and sales workers | 3121 | 26.2 | ||
| Skilled workers | 2326 | 19.5 | ||
| Semiskilled and unskilled workers | 2729 | 22.9 | ||
Values are percentage of participants or mean and SDs.
BMI, body mass index.