The European Journal of Public Health Advance Access originally published online on September 5, 2006
The European Journal of Public Health 2007 17(2):145-150; doi:10.1093/eurpub/ckl121
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Health inequalities |
The contribution of musculoskeletal disorders and physical workload to socioeconomic inequalities in health
Akseli Aittomäki1, Eero Lahelma1, Ossi Rahkonen1, Päivi Leino-Arjas2 and Pekka Martikainen3
1 Department of Public Health, University of Helsinki Finland
2 Finnish Institute of Occupational Health, Topeliuksenkatu 41 aA FIN-00250 Helsinki, Finland
3 Department of Sociology, University of Helsinki Finland
Correspondence: Akseli Aittomäki, Department of Public Health, P.O.Box 41, FIN-00014 University of Helsinki, Finland, tel: +358 9 191 27548, fax: +358 9 191 27570, e-mail: akseli.aittomaki{at}helsinki.fi
Received January 12, 2006 , accepted July 4, 2006
Objectives: The objective of the study was to examine whether the association of physical workload with musculoskeletal disorders might explain occupational social class inequalities in self-rated health. Methods: Participants of the study were 4060 years old employees of the City of Helsinki. The data (n = 3740) were derived from several sources, including mail survey designed by the researchers and health check-ups carried out by occupational health care. Prevalence data and logistic regression were used in the analyses. Results: An occupational class gradient was found for musculoskeletal disorders. The gradient in musculoskeletal disorders was largely explained by physical demands at work in both genders. The contribution of physical demands to occupational class gradient in self-rated health was considerable in women, but smaller in men. The contribution of musculoskeletal disorder to the occupational class gradient in self-rated health was weak for both genders. Conclusion: Physical workload is likely to considerably contribute to inequalities in health. Mediation of this effect through musculoskeletal disorder to generic health, however, could not be demonstrated. Different mechanisms are likely to cause inequalities in different health outcomes.
Keywords: health status, musculoskeletal disorders, occupational social class, physical workload