Saf Health Work.  2020 Mar;11(1):41-49. 10.1016/j.shaw.2019.12.004.

Cancer Incidence by Occupation in Korea: Longitudinal Analysis of a Nationwide Cohort

• Lee HE
• Zaitsu M
• Kim EA
• Kawachi I

• KMID: 2506682
• DOI: http://doi.org/10.1016/j.shaw.2019.12.004

Abstract

Background
We performed this study to investigate the inequalities in site-specific cancer incidences among workers across different occupations in Korea.
Methods
Subjects included members of the national employment insurance. Incident cancers among 8,744,603 workers were followed from 1995 to 2007. Occupational groups were classified according to the Korean Standard Occupational Classification. Age-standardized incidence rate ratios were calculated.
Results
We found that men in service/sales and blue-collar occupations had elevated rates of esophageal, liver, laryngeal, and lung cancer. Among women, service/sales workers had elevated incidences of cervical cancer. Male prostate cancer, female breast, corpus uteri, and ovarian cancers, as well as male and female colorectal, kidney, and thyroid cancer showed lower incidences among workers in lower socioeconomic occupations.
Conclusions
Substantial differences in cancer incidences were found depending on occupation reflecting socioeconomic position, in the Korean working population. Cancer prevention policy should focus on addressing these socioeconomic inequalities.

Keyword

Cancer incidence; Korea; Occupation; Socioeconomic disparity