Risk Factors Related to Musculoskeletal Symptoms in Shipyard Workers

Byung Chan Park; Hae Kwan Cheong; Soo keun Kim

doi:10.35371/kjoem.2003.15.4.373

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Original Article Risk Factors Related to Musculoskeletal Symptoms in Shipyard Workers: Byung Chan Park, Hae Kwan Cheong, Soo keun Kim; DOI: https://doi.org/10.35371/kjoem.2003.15.4.373
Published online: December 31, 2003

Department of Preventive Medicine, College of Medicine, Dongguk University, Korea. hkcheong@dongguk.ac.kr

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Abstract

OBJECTIVES
The aim of this study is to determine the risk factors related to musculoskeletal disorders in shipyard workers.
METHODS
A questionnaire survey was performed on 2,140 shipyard workers in a shipyard in Ulsan city. The questionnaire consisted of questions on the general characteristics, the health behavior, work type and duration, physical burden, job control, type of instruments used, posture, and musculoskeletal symptoms. Definition of musculoskeletal disorders was based on either NIOSH criteria and Kim's criteria.
RESULTS
Positive rate of musculoskeletal disorders in any one part of the body was 77.2% by NIOSH criteria and 60.7% by Kim's criteria. Positive rate of the symptoms increased in workers with longer work hours, with a severe physical burden, and without any control over their job. Work with a more frequent unstable posture and for longer hours was also associated with increased musculoskeletal symptoms. Multiple logistic regression analysis showed that unstable posture and physical burden is closely related to the positive rate of musculoskeletal symptoms after controlling for age, smoking, drinking, exercise, duration of work, and job control; showing a good dose-response relationship.
CONCLUSION
Inadequate posture and physical burden were the most significant factors affecting musculoskeletal disorders in shipyard workers in this study. Therefore, it will be necessary to make efforts to reduce the prevalence of musculoskeletal disorders related to a specific job, instrument, physical burden, and posture. Workers should be educated on the types and prevalence of musculoskeletal disorders, how to improve the ergonomic occupational environment and to set up preventive measures against the risk factors during work.

Keywords: Work related musculoskeletal disorders;Cumulative trauma disorders;Risk factors;Shipyard

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