title: The relationship between economic status and mortality of South Koreans, as it relates to average life expectancy.
abstract: This study investigates the relationship between economic status and mortality of Korean men and women who were under and over the average national life expectancy using Cox's proportional hazard model to adjust for health status, past medical history, and age. The study subjects come from local applicants of Korean National Health Insurance who had a health examination in 2005. They were enrolled into a follow-up investigation from 2005 to 2011. In individuals younger than the average life expectancy, the mortality of the lowest economic status was 2.48 times higher in men and 2.02 times higher in women than that in the highest economic status. Economic status-mortality association in males older than the average life expectancy was attenuated but not eliminated. However, there is no significant relationship between economic status and mortality for females above the average life expectancy.
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, Seoul, Korea Institute of Health Services Research, Yonsei University, Seoul, Korea National Health Insurance Corporation Ilsan Hospital, Goyang-si, Korea.
authors.forename: Ji Man
authors.initials: JM
authors.lastname: Kim
authors.affiliation: National Health Insurance Corporation, Seoul, Korea.
authors.forename: Yong-Sim
authors.initials: YS
authors.lastname: Jo
authors.affiliation: Institute of Health Services Research, Yonsei University, Seoul, Korea Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Eun-Cheol
authors.initials: EC
authors.lastname: Park
authors.affiliation: Institute of Health Services Research, Yonsei University, Seoul, Korea Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Woo-Hyun
authors.initials: WH
authors.lastname: Cho
authors.affiliation: Division of Business Administration, Yonsei University, Seoul, Korea.
authors.forename: Jongwon
authors.initials: J
authors.lastname: Choi
authors.affiliation: Institute of Health Services Research, Yonsei University, Seoul, Korea Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea mann@yuhs.ac.
authors.forename: Hoo-Sun
authors.initials: HS
authors.lastname: Chang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006304:Health Status; D006801:Humans; D008017:Life Expectancy / Q000639:trends*; D008297:Male; D008875:Middle Aged; D009026:Mortality / Q000639:trends*; D009313:National Health Programs; D056910:Republic of Korea / Q000453:epidemiology; D012923:Social Class