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Are trajectories of neck-shoulder pain associated with sick leave and work ability in workers? A 1-year prospective study
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: 0000-0002-2741-1868
National Research Centre for the Working Environment, Copenhagen, Denmark.
National Research Centre for the Working Environment, Copenhagen, Denmark.
National Research Centre for the Working Environment, Copenhagen, Denmark.
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2019 (English)In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 9, no e022006Article in journal (Refereed) Published
Abstract [en]

ObjectivesThe study aimed to determine the extent to which latent trajectories of neck–shoulder pain (NSP) are associated with self-reported sick leave and work ability based on frequent repeated measures over 1 year in an occupational population.

MethodsThis longitudinal study included 748 Danish workers (blue-collar, n=620; white collar, n=128). A questionnaire was administered to collect data on personal and occupational factors at baseline. Text messages were used for repeated measurements of NSP intensity (scale 0–10) over 1 year (14 waves in total). Simultaneously, selfreported sick leave (days/month) due to pain was assessed at 4-week intervals, while work ability (scale 0–10) was assessed using a single item (work ability index) at 12-week intervals over the year. Trajectories of NSP, distinguished by latent class growth analysis, were usedas predictors of sick leave and work ability in generalised estimation equations with multiple adjustments.

ResultsSick leave increased and work ability decreased across all NSP trajectory classes (low, moderate, strong fluctuating and severe persistent pain intensity). In the adjusted model, the estimated number of days on sickleave was 1.5 days/month for severe persistent NSP compared with 0.1 days/month for low NSP (relativ risk=13.8, 95% CI 6.7 to 28.5). Similarly, work ability decreased markedly for severe persistent NSP (OR=12.9,95% CI 8.5 to 19.7; median 7.1) compared with low NSP (median 9.5).

ConclusionSevere persistent NSP was associatedwith sick leave and poor work ability over 1 year amongworkers. Preventive strategies aiming at reducing severepersistent NSP among working populations are needed.

Place, publisher, year, edition, pages
2019. Vol. 9, no e022006
Keywords [en]
LCGA; chronic pain; neck pain; occupational; pain trajectories
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:hig:diva-25568DOI: 10.1136/bmjopen-2018-022006ISI: 000471144900020PubMedID: 30898794Scopus ID: 2-s2.0-85063278240OAI: oai:DiVA.org:hig-25568DiVA, id: diva2:1159270
Projects
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Part of project
Forte-centre Working Life: The Body at Work - from problem to potential, Forte
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare
Note

Funding agency:

- Danish Government (Satspulje) 

Available from: 2017-11-22 Created: 2017-11-22 Last updated: 2019-09-30Bibliographically approved

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Hallman, David

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