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Korean Journal of Epidemiology 2001;23(2): 52-63.
The Effect of Work Department, Income and Job Status on the Workplace Injury Rates in One Car Manufacturing Factory.
Mi A Son
Centre for Occupational Medicine, Hallym University MedicalCentre, Korea. sonmia@dreamwiz.com
There has been little research into socio-economic factors and work condition s as risk factors for workplace injuries in Korea. Separating work from social class is difficult as the social division of labour is at the origin of social class (1). The objective of this study is to investigate the relationship of working conditions and socio-economic factors with workplace injury rates.
Three year-follow up data sets for workplace injury data analysis for retrospective cohort study were obtained linking the total workforce and workplace injuries between 1995 and 1997. The Proportional Hazards Model (Cox regression) is used to estimate the hazard ratios for workplace injury by different possible risk factors: work department, income, job status, age and tenure.
The press, body and engine departments have higher hazard rates for severe injuries; the press, engine, and supporting departments for lower-back pain; and the assembly line (with wider confidence interval) and supporting departments for Herniated Intervertebral Discs. Lower waged workers have higher rates of workplace injuries, especially for lower-back pain. Workers with low job status have higher rates than foremen or supervisors. Thus, socio-economic factors and work department contribute independently to workplace injury rates.
Even though this study could not fully investigate the relationship between socio-economic factors and working conditions, the working conditions as well as socioeconomic factors need to be considered as risk factors of workplace injuries in the workplace.
Keywords: Job department; Income; Job status; Workplace injury rates; Low back pain; HIVD


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