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The effect of a health and safety climate intervention on worker health and safety.


- candidate number22483
- NTR NumberNTR5391
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR20-jul-2015
- Secondary IDsIZZ-02-GWIDZ-2015 Stichting IZZ
- Public TitleThe effect of a health and safety climate intervention on worker health and safety.
- Scientific TitleThe effect of a health and safety climate intervention on worker health, behaviour and health performance
- ACRONYMGWIGO
- hypothesisH1: Compared to a control group of teams, employees in teams who are subject to the safety climate intervention will report higher levels of safety climate, -knowledge and -motivation measured at post-intervention (T1).

H2: Compared to a control group of teams, teams who are subject to the H&S climate intervention will report lower levels of physical and mental health problems, and H&S behavior measured at the first follow-up (T2)

H3: Compared to a control group of teams, teams who are subject to the safety climate intervention will report lower levels of work-related absenteeism and work-related health care utilization measured at the second follow-up (T3).

H4: The positive effect of participation in a safety climate intervention on H&S performance will be mediated by changes in safety climate, behavior and health problems.
- Healt Condition(s) or Problem(s) studiedSafety, Healthy environment, Workers, Work-related musculoskeletal disorders (WMSDs)
- Inclusion criteriaThe intervention takes place at the team level.
Teams are included if:
- they are part of a Dutch health care organisation
- they consist of at least 8 and at the most 25 team members
- they are supervised by a direct supervisor or a prevention worker that will act as a direct supervisor
- they have a regular team meeting every 4-6 weeks
- Exclusion criteriaThe intervention takes place at the team level.
Teams are excluded if:
- team members experience either physical or psychosocial strain, not both types of strain
- mec approval receivedno
- multicenter trialyes
- randomisedyes
- masking/blindingNone
- controlActive
- groupParallel
- TypeSingle arm
- Studytypeintervention
- planned startdate 1-okt-2015
- planned closingdate1-jan-2017
- Target number of participants1125
- InterventionsThe goal of the intervention is to improve the health and safety climate perceptions of teams involved in the intervention. The design of the intervention will include three small-scale interventions aimed at improving at least three health and safety climate dimensions (top management priority, direct management commitment, group norms).
1. Executive management WalkAround
2. Safety-specific Transformational Leadership coaching of direct supervisors
3. Teams engage in an online discussion of healthy group norms and -behavior using the online tool 'Synmind'
- Primary outcome- Improvement of health and safety climate scores at T1 (post-intervention, intervention takes 3-5 months)
- Secondary outcome- Improvement of health and safety knowledge score at T1 (post-intervention)
- Improvement of health and safety motivation score at T1
- Improvement of health and safety behaviour score at T2 (6 months after post-intervention)
- Decrease of musculoskeletal problems score at T2
- Decrease of emotional exhaustion score at T2
- Decrease of psychological distress score at T2
- Decrease of work-related absenteeism score at T3 (12 months after post-intervention)
- Decrease of work-related physical therapy and mental health care utilization score at T3
- TimepointsT0 = pre intervention (1-3 weeks before start intervention)
T1 = post intervention (3-5 months after start intervention)
T2 = follow-up 1 (6 months after post intervention)
T3 = follow-up 2 (12 months after post intervention
- Trial web site
- statusopen: patient inclusion
- CONTACT FOR PUBLIC QUERIESMSc Babette Bronkhorst
- CONTACT for SCIENTIFIC QUERIESMSc Babette Bronkhorst
- Sponsor/Initiator Erasmus University Rotterdam, Department of Public Administration, Stichting IZZ
- Funding
(Source(s) of Monetary or Material Support)
Stichting IZZ
- Publications
- Brief summary
- Main changes (audit trail)
- RECORD20-jul-2015 - 17-okt-2015


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