title: Effect of a participatory organizational-level occupational health intervention on job satisfaction, exhaustion and sleep disturbances: results of a cluster randomized controlled trial.
abstract: We examined whether the implementation of a participatory organizational-level intervention aiming to improve the working environment with a focus on the core task at work, increased job satisfaction and reduced exhaustion and sleep disturbances among pre-school employees.
  
  
  
  The study sample consisted of 41 intervention group pre-schools with 423 employees and 30 control group pre-schools with 241 employees. The intervention lasted 25 months and consisted of seminars, workshops, and workplace specific intervention activities that were developed by focusing on the core task at work. We analyzed within-group changes in the three outcome variables from baseline to follow-up with t-tests for paired samples, separately for intervention and control group. Between-group differences in changes in the three outcome variables were analyzed using a mixed model with a repeated statement to account for the clustering effect of workplaces.
  
  
  
  Within-group analyses showed that exhaustion decreased statistically significantly in both the intervention and the control group. There were no statistically significantly changes in job satisfaction and sleep disturbances. Between-group analyses showed that there was no statistically significant difference between the two groups for changes in any of the outcome variables, neither in the unadjusted or in the adjusted analyses.
  
  
  
  We found no evidence that participating in an organizational-level occupational health intervention aiming to improve the working environment with a focus on the core task at work has an effect on pre-school employees' job satisfaction, exhaustion and sleep disturbances.
  
  
  
  ISRCTN16271504 , November 15, 2016.
authors.affiliation: Center for Industrial Production, Aalborg University Copenhagen, A. C. Meyers Vænge 15, DK-2450, Copenhagen, Denmark. ef@business.aau.dk.|National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100, Copenhagen, Denmark. ef@business.aau.dk.
authors.forename: Elisabeth
authors.identifier: 0000-0002-5702-3954
authors.initials: E
authors.lastname: Framke
authors.affiliation: Center for Industrial Production, Aalborg University Copenhagen, A. C. Meyers Vænge 15, DK-2450, Copenhagen, Denmark.
authors.forename: Ole Henning
authors.initials: OH
authors.lastname: Sørensen
authors.affiliation: National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100, Copenhagen, Denmark.
authors.forename: Jacob
authors.initials: J
authors.lastname: Pedersen
authors.affiliation: National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100, Copenhagen, Denmark.|Department of Public Health, University of Copenhagen, Øster Farimagsgade 5, DK-1014, Copenhagen, Denmark.|Department of Psychology, University of Copenhagen, Øster Farimagsgade 2A, DK-1353, Copenhagen, Denmark.
authors.forename: Reiner
authors.initials: R
authors.lastname: Rugulies
mesh_terms: D000328:Adult; D005221:Fatigue / Q000150:complications / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007588:Job Satisfaction; D008297:Male; D009426:Netherlands; D016272:Occupational Health; D009786:Occupational Health Services / Q000379:methods; D000070777:School Teachers / Q000523:psychology*; D012893:Sleep Wake Disorders / Q000150:complications / Q000517:prevention & control*; D016896:Treatment Outcome; D017132:Workplace
keywords: Core task; Occupational health; Psychosocial; Stress-as-Offense-to-Self; Well-being at work