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Data processing costs for three posture assessment methods
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning. University of Saskatchewan, College of Medicine, Centre for Health & Safety in Agriculture, Saskatoon, SK S7N 0W8, Canada.
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning.ORCID-id: 0000-0003-1443-6211
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning.ORCID-id: 0000-0003-2939-0236
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap, Arbetshälsovetenskap. Högskolan i Gävle, Centrum för belastningsskadeforskning. Umea University, Department of Public Health & Clinical Medical Occupational & Environmental Medicine, SE-90185 UmeåSweden.
2013 (engelsk)Inngår i: BMC Medical Research Methodology, ISSN 1471-2288, E-ISSN 1471-2288, Vol. 13, nr 1, s. 124-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Objectives. Data processing contributes a non-trivial proportion to total research costs, but documentation of these costs is rare. This paper employed a priori cost tracking for three posture assessment methods (self-report, observation of video, and inclinometry), developed a model describing the fixed and variable cost components, and simulated additional study scenarios to demonstrate the utility of the model. 

Methods. Trunk and shoulder postures of aircraft baggage handlers were assessed for 80 working days using all three methods. A model was developed to estimate data processing phase costs, including fixed and variable components related to study planning and administration, custom software development, training of analysts, and processing time.   

Results. Observation of video was the most costly data processing method with total cost of 31,433, and was 1.2-fold more costly than inclinometry (€ 26,255), and 2.5-fold more costly than self-reported data (€ 12,491). Simulated scenarios showed altering design strategy could substantially impact processing costs. This was shown for both fixed parameters, such as software development and training costs, and variable parameters, such as the number of work-shift files processed, as well as the sampling frequency for video observation.  When data collection and data processing costs were combined, the cost difference between video and inclinometer methods was reduced to 7%; simulated data showed this difference could be diminished and, even, reversed at larger study sample sizes. Self-report remained substantially less costly under all design strategies, but produced alternate exposure metrics. 

Conclusions. These findings build on the previously published data collection phase cost model by reporting costs for post-collection data processing of the same data set.  Together, these models permit empirically based study planning and identification of cost-efficient study designs.

sted, utgiver, år, opplag, sider
2013. Vol. 13, nr 1, s. 124-
Emneord [en]
cost-efficiency, shoulder, back, inclinometry, observation, questionnaire, work related musculoskeletal disorders, methods development
HSV kategori
Identifikatorer
URN: urn:nbn:se:hig:diva-13814DOI: 10.1186/1471-2288-13-124ISI: 000329212500001PubMedID: 24118872Scopus ID: 2-s2.0-84885336051OAI: oai:DiVA.org:hig-13814DiVA, id: diva2:604339
Forskningsfinansiär
AFA Insurance, 100071Forte, Swedish Research Council for Health, Working Life and Welfare, Dnr 2009-1761Tilgjengelig fra: 2013-02-09 Laget: 2013-02-09 Sist oppdatert: 2018-03-13bibliografisk kontrollert

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Trask, CatherineMathiassen, Svend ErikJackson, JennieWahlström, Jens

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