Change in job insecurity and depressive symptoms among automobile sales workers: A 7-year follow-up study in South Korea

[Speaker] Kim, Seung-sup:1,2
[Co-author] Kim, Yugyun:1
1:Department of Public Health Sciences, Graduate School of Korea University (Korea(Republic of Korea)), 2:College of Health Sciences, Korea University (Korea(Republic of Korea))

Job insecurity might be a potential threat to workers' health. This study examined the prospective effect of job insecurity on depressive symptoms among automobile sales workers in South Korea, using a longitudinal cohort data of 557 sales workers from an automobile company. Job insecurity was measured in both 2007 and 2014 using six items of Korean Occupational Stress Scale. Based on perceived job insecurity at both waves, respondents were classified into four groups: secure-secure, secure-insecure, insecure-secure, and insecure-insecure. Depressive symptoms over the past week were assessed by Beck's Depression Index in 2014 as well as 2007. After adjusting for potential confounders including baseline depressive symptoms, the secure-insecure(PR: 2.49, 95% CI: 1.32-4.27) and the insecure-insecure(PR: 1.87, 95% CI: 1.18-3.69) groups had higher prevalence of depressive symptoms, compared to the secure-secure group. Our study found that job insecurity could be a relevant risk factor for developing depressive symptoms among automobile sales workers.
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