Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Shift Work and Anxiety Symptoms at an Electronic Manufacture Company: The mediating effect of vitamin D and sleep quality

일개 전자제품 제조업 근로자에서 교대근무와 불안증상: 비타민 D와 수면의 질의 매개효과

  • Chae, Chang Ho (Department of Occupational & Environmental Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine) ;
  • Park, Young Sook (Department of Physical & Rehabilitation Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine)
  • 채창호 (성균관대학교 삼성창원병원 직업환경의학과) ;
  • 박영숙 (성균관대학교 삼성창원병원 재활의학과)
  • Received : 2020.08.05
  • Accepted : 2020.09.11
  • Published : 2020.09.30
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Abstract

Objectives: The purpose of this study was to compare vitamin D levels, sleep quality, and anxiety symptoms between shift workers and daytime workers and analyze the mediating effect of vitamin D and sleep quality between shift work and anxiety symptoms. Methods: The subjects of the study were 6744 people who received a medical examination while working for an electronics manufacturing company in 2016. We evaluated their shift work, vitamin D levels, sleep quality, and anxiety symptoms with blood samples and questionnaires. Chi-square test, t-test and path statistical analysis were performed. Results: The shift workers had significantly higher symptoms of anxiety than the day workers, significantly lower levels of vitamin D in the blood, and significantly poorer quality of sleep. The results of the pathway analysis confirmed that blood vitamin D and sleep quality had a mediating effect between shift work and anxiety symptoms. Conclusions: Shift workers should be constantly paying attention to mental health effects such as anxiety symptoms. Shift workers should also be alerted of the risk of vitamin D deficiency, encouraged about sun exposure and vitamin D intake, and required to undergo training and counseling on sleep hygiene.

Keywords

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