The aim of the study was to develop and evaluate the reliability of the “Danish observational study of eldercare work and musculoskeletal disorders” (DOSES) observation instrument to assess physical and psychosocial risk factors for musculoskeletal disorders (MSD) in eldercare work. During 1.5 years, sixteen raters conducted 117 inter-rater observations from 11 nursing homes. Reliability was evaluated using percent agreement and Gwet's AC1 coefficient. Of the 18 examined items, inter-rater reliability was excellent for 7 items (AC1>0.75) fair to good for 7 items (AC1 0.40–0.75) and poor for 2 items (AC1 0–0.40). For 2 items there was no agreement between the raters (AC1 <0). The reliability did not differ between the first and second half of the data collection period and the inter-rater observations were representative regarding occurrence of events in eldercare work. The instrument is appropriate for assessing physical and psychosocial risk factors for MSD among eldercare workers.

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Applied Ergonomics: human factors in technology and society
Department of Public Health

Karstad, K. (Kristina), Rugulies, R. (Reiner), Skotte, J. (Jørgen), Munch, P.K. (Pernille Kold), Greiner, B.A. (Birgit A.), Burdorf, A. (Alex), … Holtermann, A. (2018). Inter-rater reliability of direct observations of the physical and psychosocial working conditions in eldercare: An evaluation in the DOSES project. Applied Ergonomics: human factors in technology and society, 69, 93–103. doi:10.1016/j.apergo.2018.01.004