A1 Journal article (refereed)
Work-Related Biomechanical Exposure and Job Strain as Separate and Joint Predictors of Musculoskeletal Diseases : A 28-Year Prospective Follow-up Study (2017)


Prakash, K. C., Neupane, S., Leino-Arjas, P., von Bonsdorff, M., Rantanen, T., von Bonsdorff, M., Seitsamo, J., Ilmarinen, J., & Nygård, C.-H. (2017). Work-Related Biomechanical Exposure and Job Strain as Separate and Joint Predictors of Musculoskeletal Diseases : A 28-Year Prospective Follow-up Study. American Journal of Epidemiology, 186(11), 1256-1267. https://doi.org/10.1093/aje/kwx189


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Publication details

All authors or editorsPrakash, K. C.; Neupane, Subas; Leino-Arjas, Päivi; von Bonsdorff, Mikaela; Rantanen, Taina; von Bonsdorff, Monika; Seitsamo, Jorma; Ilmarinen, Juhani; Nygård, Clas-Håkan

Journal or seriesAmerican Journal of Epidemiology

ISSN0002-9262

eISSN1476-6256

Publication year2017

Volume186

Issue number11

Pages range1256-1267

PublisherOxford University Press

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1093/aje/kwx189

Publication open accessNot open

Publication channel open access


Abstract

We investigated how work-related biomechanical exposure and job strain in midlife separately and jointly predicted back and degenerative musculoskeletal diseases (MSDs). A total of 6,257 employees participated in the Finnish Longitudinal Study on Aging Municipal Employees (FLAME) in 1981 and were followed up for 28 years. Risk ratios and the relative excessive risk due to interaction and 95% confidence intervals were modeled for separate and joint prediction estimates, respectively. After adjustment for confounders, job strain predicted degenerative MSDs among women after 4 and 11 years of follow-up. After 11 years, both exposures predicted both types of MSDs among men. Joint exposure predicted both types of MSDs after 4 years among women (for back MSDs, risk ratio (RR) = 1.58, 95% confidence interval (CI): 1.15, 2.18; for degenerative MSDs, RR = 1.59, 95% CI: 1.21, 2.07) and men (for back MSDs, RR = 1.50, 95% CI: 1.05, 2.15; for degenerative MSDs, RR = 1.61, 95% CI: 1.16, 2.22) and both types of MSDs after 11 years (for back MSDs, RR = 1.72, 95% CI: 1.21, 2.43; for degenerative MSDs, RR = 1.68, 95% CI: 1.25, 2.46) among men only, but the relative excessive risk due to interaction was not significant throughout. However, after 28 years, the separate and joint exposures did not predict MSDs. Workplace interventions should be focused on reducing job strain along with biomechanical exposure for possible prevention of MSDs in working life and around the time of retirement, but there may be other pathways of onset of MSDs in old age.


Keywordsbiomechanicsexposureworkwork burdenmusculoskeletal systempsychosocial factorsinteractionmusculoskeletal diseasesoccupational exposure

Free keywordsbiomechanical exposure; job strain; psychosocial exposure


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Ministry reportingYes

Reporting Year2017

JUFO rating2


Last updated on 2024-11-05 at 17:05