Test-retest reliability and concurrent validity of a web-based questionnaire measuring workstation and individual correlates of work postures during computer work
| Jazyk: | angličtina |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Questionnaires
Office buildings Risk perception Veilig en Gezond Werken Testing Human engineering Surveys Neuromuscular rehabilitation Web-based questionnaire Musculoskeletal Diseases Workplace Risk assessment Classification (of information) Equipment Design Reliability Food products t) measurements Test-retest reliability working postures Office workers Field studies Healthy Living Interior Design and Furnishings Musculoskeletal disorders (MSD) Work postures Site observations Posture Information technology Population statistics Validity (p Humans Computer networks Occupational Health Internet Elsevier (CO) individual characteristics Occupational risks Computers Computer workstations Measurements In between Visual guidance Reproducibility of Results Internet questionnaire Individual (PSS 544-7) Industrial engineering risk categories Goniometers Misclassification (MC) Healthy for Life |
| Popis: | Introduction: "Ergonomic" questionnaires are widely used in epidemiological field studies to study the association between workstation characteristics, work posture and musculoskeletal disorders among office workers. Findings have been inconsistent regarding the putative adverse effect of work postures. Underestimation of the true association might be present in studies due to misclassification of subjects to risk (i.e. exposed to non-neutral working postures) and no-risk categories (i.e. not exposed to non-neutral working postures) based on questionnaire responses. The objective of this study was to estimate the amount of misclassification resulting from the use of questionnaires. Methods: Test-retest reliability and concurrent validity of a newly developed questionnaire was assessed. This questionnaire collects data on workstation characteristics and on individual characteristics during computer work (i.e. work postures, movements and habits). Pictures were added where possible to provide visual guidance. The study population consisted of 84 office workers of a research department. They filled out the questionnaire on the Internet twice, with an in-between period of 2 weeks. For a subgroup of workers (n=38), additional on-site observations and multiple manual goniometer measurements were performed. Results: Percentage agreement ranged between 71% and 100% for the test-retest analysis, between 31% and 100% for the comparison between questionnaire and on-site observation, and between 26% and 71% for the comparison between questionnaire and manual goniometer measurements. For 9 out of 12 tested items, the percentage agreement between questionnaire and manual goniometer measurements was below 50%. Conclusions: The questionnaire collects reliable data on workstation characteristics and some individual characteristics during computer work (i.e. work movements and habits), but does not seem to be useful to collect data on work postures during computer work in epidemiological field studies among office workers. © 2007 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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