Primary and secondary outcomes and time points for measurement
| Time points for measurement after interventions | Statistical analyses and reporting | ||||
| 6 | 12 | 15 | 20 | ||
| Primary outcomes | |||||
| Self-reported work environment | |||||
| Psychosocial and organisational working conditions | ✓ | ✓ | Differences in means using linear mixed models/continuous outcomes | ||
| Job demands, emotional demands, job control, social support, role expectations, leadership, bullying, violence, unwanted sexual attention | |||||
| Mechanical working conditions | ✓ | ✓ | Differences in means using linear mixed models/continuous outcomes | ||
| Squatting/kneeling, standing, upper body forward bending, awkward lifting, heavy lifting, lifting people | |||||
| Self-reported health complaints | |||||
| Mental health complaints | ✓ | ✓ | Differences in means using linear mixed models/continuous outcomes | ||
| Mental distress, exhaustion | |||||
| Musculoskeletal complaints | ✓ | ✓ | Differences in means using linear mixed models/continuous outcomes | ||
| Neck pain, back pain, headache, pain in the shoulder, upper arm, lower arm, wrist or hand, pain in hips, legs, knees or feet | |||||
| Work ability | ✓ | ✓ | Differences in means using linear mixed models/continuous outcomes | ||
| Sickness absence* | Risk ratios using Poisson mixed models/count outcomes | ||||
| Compliance with OSH legislation | ✓ | Differences in means using t-tests/count outcomes | |||
| Secondary outcomes | |||||
| Self-reported work environment | ✓ | ✓ | |||
| New technology and work-related changes, predictability during the next month, positive challenges at work | Odds ratios using mixed logistic regression/dichotomous outcomes | ||||
| Self-reported health complaints | ✓ | ✓ | |||
| sleep | Differences in means using linear mixed models/continuous outcomes | ||||
| Occupational injuries | ✓ | ✓ | Odds ratios using mixed logistic regression/dichotomous outcomes | ||
| Systematic safety and health work | ✓ | ✓ | Odds ratios using mixed logistic regression/dichotomous outcomes | ||
| Additional effects of labour inspection on work environment and health | ✓ | Differences in means using linear mixed models/continuous outcomes | |||
*Sickness absence rates will be based on doctor-certified sickness absence 1 year before and the year following the interventions.