Relationship between Two Job Stress Models and Coronary Risk Factors among Japanese Part-Time Female Employees of a Retail Company

  • Kobayashi Yuka
    Department of Hygiene and Preventive Medicine, Okayama University Graduate School of Medicine and Dentistry
  • Hirose Toshio
    Sendai Nishikicho Clinic and Center of Occupational Medicine
  • Tada Yumiko
    Sendai Nishikicho Clinic and Center of Occupational Medicine
  • Tsutsumi Akizumi
    Department of Hygiene and Preventive Medicine, Okayama University Graduate School of Medicine and Dentistry
  • Kawakami Norito
    Department of Hygiene and Preventive Medicine, Okayama University Graduate School of Medicine and Dentistry

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  • Relationship between Two Job Stress Models and Coronary Risk Factors among Japanese Part‐Time Female Employees of a Retail Company

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Abstract

The objective of this study was to explore the associations between two major job stress models (job strain and effort-reward imbalance) and coronary heart disease (CHD) risk factors (blood pressure; total, high- (HDL) and low-density lipoprotein (LDL) cholesterol; and triglycerides) in Japanese part-time female employees of a retail company. The study population was either 35 yr old or between 40 and 63 yr old. Data collection was carried out in 2002; a total of 1,401 subjects participated in a medical examination and completed a questionnaire. After adjusting for other covariates (age, relative weight, tobacco use, alcohol consumption, lack of exercise, education, marital status, history of child bearing, medical treatment for disease, and occupation), a significant association was found between the effort-reward imbalance, a "high-cost and low-gain" condition at work, and a high prevalence of low HDL cholesterol (Odds ratio = 4.4). A weak but unexpected association was found between job strain and low prevalence of low HDL cholesterol. In explanatory analysis with individual components of the two models, associations were evident between high extrinsic effort and high prevalence of low HDL cholesterol and low prevalence of high triglyceride, high job control and low prevalence of high systolic blood pressure, and high job demands and low prevalence of high systolic and diastolic blood pressure. In this cross-sectional study of Japanese part-time working women, a significant association was found between effort-reward imbalance and unfavorable HDL cholesterol profiles. The findings did not support the hypothesis that job strain is associated with CHD risk factors. <br>

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