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A method for effect modifier assessment (EMA) in ergonomic intervention research.

Kasper Edwards1, Jörgen Winkel2

  • 1DTU Management Engineering, Building 424, Technical University of Denmark, DK-2800, Lyngby, Denmark.

Applied Ergonomics
|June 11, 2018
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Summary

This study introduces a new method for effect modifier assessment (EMA) in ergonomic intervention research. The participatory workshop approach helps identify and evaluate factors influencing intervention outcomes, strengthening research findings.

Keywords:
Effect modificationErgonomic interventionResearch method

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Area of Science:

  • Occupational Health
  • Ergonomics
  • Research Methodology

Background:

  • Effect modifications present significant challenges in ergonomic intervention research.
  • High-quality systematic reviews often overlook potential effect modifiers.
  • A standardized method for assessing effect modifiers in this field is needed.

Purpose of the Study:

  • To develop and test a novel method for effect modifier assessment (EMA) in ergonomic intervention research.
  • To address the limitations in current research regarding the consideration of effect modifiers.
  • To enhance the validity of findings from ergonomic intervention studies.

Main Methods:

  • Developed a participatory workshop model involving diverse occupational groups.
  • Identified and categorized intervention events, confounders, and effect modifiers using epidemiological terminology.
  • Analyzed and evaluated the potential impact of identified modifiers on study outcomes.
  • Estimated the pooled impact of modifier themes relative to intervention effects.

Main Results:

  • The EMA method was successfully applied in two case studies.
  • The findings indicate that EMA provides valuable information for strengthening inferences about ergonomic interventions.
  • The method facilitates a more comprehensive understanding of intervention impacts by accounting for effect modifiers.

Conclusions:

  • The developed EMA method offers a robust approach to addressing effect modifications in ergonomic research.
  • This participatory method enhances the quality and interpretability of intervention studies.
  • Further validation and application of the EMA method are recommended for broader adoption.