title: Successful reach and adoption of a workplace health promotion RCT targeting a group of high-risk workers.
abstract: BACKGROUND
  Cleaners are rarely introduced to workplace health promotion programs. The study's objective was to evaluate the reach and adoption of a workplace randomized controlled trial (RCT) among cleaners in Denmark.
  
  
  METHODS
  Cleaning businesses with at least 30 employees, that could offer a weekly 1-hour intervention during working hours, were invited to participate. Employees working at least 20 hours/week were invited to answer a screening questionnaire and consent to participate. Analyses determined the differences in health variables between responders and non-responders, consenters and non-consenters, participants and non-participants and between participants of the RCT's three groups: physical coordination training, cognitive-behavioural theory-based training and reference group.
  
  
  RESULTS
  From 16 eligible workplaces, a representative sample of 50% adopted the trial. Of 758 eligible employees, 78% responded to the screening questionnaire and 49% consented to participate. Consenters and participants differed from non-consenters and non-participants by having higher BMI, more chronic diseases and poorer musculoskeletal health.
  
  
  CONCLUSIONS
  This study indicates that workplace health promotion programs directed at health risk factors among cleaners enable significant adoption and reach to a high-risk subgroup of the Danish workforce.
  
  
  BACKGROUND
  Trial registration ISRCTN96241850.
authors.affiliation: The National Research Centre for the Working Environment, Copenhagen, Denmark. mbj@nrcwe.dk
authors.forename: Marie B
authors.initials: MB
authors.lastname: Jørgensen
authors.forename: Charlotte D N
authors.initials: CD
authors.lastname: Rasmussen
authors.forename: Dorte
authors.initials: D
authors.lastname: Ekner
authors.forename: Karen
authors.initials: K
authors.lastname: Søgaard
mesh_terms: D000328:Adult; D003718:Denmark; D005260:Female; D006293:Health Promotion / Q000379:methods*; D006796:Household Work; D006801:Humans; D008297:Male; D008875:Middle Aged; D009936:Organizational Innovation; D012307:Risk Factors; D011795:Surveys and Questionnaires; D000078329:Workforce; D017132:Workplace / Q000523:psychology*; D055815:Young Adult