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Cost-Effectiveness and Return-on-Investment of a Participatory Ergonomics Intervention Among Childcare Workers: An
Nidhi Gupta1, Johanna M van Dongen, Andreas Holtermann
1From the Department of Musculoskeletal Disorders and PhysicalWork Demands, The National Research Centre for the Working Environment, Copenhagen, Denmark (Dr Gupta, Dr Holtermann, Dr Stevens, Dr Rasmussen); Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute (Dr van Dongen); Department of Public and Occupational Health, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands (Dr van der Beek).
Objectives:
To evaluate the cost-effectiveness and return-on-investment (ROI) of 20-week ergonomic intervention to reduce physical exertion at work compared with usual-practice among childcare workers.
Methods:
One hundred ninety workers from 16 institutions were cluster-(institute)-randomized to intervention (n = 96) and usual-practice (n = 94) group. The intervention group participated in three workshops to develop/implement action plans improving ergonomic conditions. The rating of physical exertion (RPE) was measured at baseline and 20-weeks. Employer-perspective-based costs of intervention, absenteeism, and presenteeism were estimated.
Results:
Although statistically non-significant, one-unit reduction in RPE was associated with saving of 592 EUR/worker. Per-EUR invested by the employer was associated with 1.6 EUR (95% CI: -3.1; 6.5) return in the intervention compared with usual practice.
Conclusion:
The intervention tended to gain monetary benefit for the employer. The results should be replicated in larger populations for improved precision of economic evaluation estimates.Trial registration: ISRCTN10928313.
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