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Time-based data in occupational studies - the whys, the hows and some remaining challenges in Compositional Data Analysis (CoDA)
National Research Centre for the Working Environment, Copenhagen .
National Research Centre for the Working Environment, Copenhagen .
National Research Centre for the Working Environment, Copenhagen .
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational Health Science and Psychology, Occupational Health Science. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0003-1443-6211
2020 (English)In: Annals of Occupational Hygiene, ISSN 0003-4878, E-ISSN 1475-3162Article in journal (Refereed) In press
Abstract [en]

Data on the use of time in different exposures, behaviors and work tasks are common in occupational research. Such data are most often expressed in hours, minutes, or percentage of work time. Thus, they are constrained or “compositional”, in that they add up to a finite sum (e.g. 8 hours of work, or 100% work time). Due to their properties, compositional data need to be processed and analyzed using a set of specifically adapted methods called compositional data analysis (CoDA). CoDA has become an established framework to handle compositional data in various scientific fields such as nutritional epidemiology, geology and chemistry, but has only recently gained attention in public and occupational health sciences. In this paper, we introduce the reader to CoDA by explaining why CoDA should be used when dealing with compositional time-use data, showing how to perform CoDA, including a worked example, and pointing at some remaining challenges in CoDA. The paper concludes by emphasizing that CoDA in occupational research is still in its infancy, and stresses the need for further development and experience in the use of CoDA for time-based occupational exposures. We hope that the paper will encourage researchers to adopt and apply CoDA in studies of work exposures and health.

Place, publisher, year, edition, pages
2020.
Keywords [en]
work environment, isometric log-ratio, ergonomics, constrained
National Category
Occupational Health and Environmental Health
Research subject
Health-Promoting Work
Identifiers
URN: urn:nbn:se:hig:diva-31181DOI: 10.1093/annweh/wxaa056OAI: oai:DiVA.org:hig-31181DiVA, id: diva2:1375392
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-1761Available from: 2019-12-04 Created: 2019-12-04 Last updated: 2020-05-29Bibliographically approved

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Mathiassen, Svend Erik

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CiteExportLink to record
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