The Effect of Chronic Health Conditions on Work Performance in Japanese Companies

  • Wada Koji
    Department of Preventive Medicine and Public Health, Kitasato University School of Medicine Department of Epidemiology, Biostatistics and Occupational Health, McGill University
  • Moriyama Mio
    Department of Hygiene and Public Health, Tokyo Women's Medical University
  • Narai Rie
    Department of Environmental Health, Faculty of Medicine, University of Occupational and Environmental Health
  • Tahara Hiroyuki
    Department of Mental Health, University of Occupational and Environmental Health
  • Kakuma Ritsuko
    Department of Epidemiology, Biostatistics and Occupational Health, McGill University
  • Satoh Toshihiko
    Department of Preventive Medicine and Public Health, Kitasato University School of Medicine
  • Aizawa Yoshiharu
    Department of Preventive Medicine and Public Health, Kitasato University School of Medicine

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Other Title
  • 関東地区の事業場における慢性疾患による仕事の生産性への影響
  • カントウ チク ノ ジギョウジョウ ニ オケル マンセイ シッカン ニ ヨル シゴト ノ セイサンセイ エノ エイキョウ

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Chronic disease has a significant impact on workers' productivity. The aim of this study was to determine the prevalence of chronic health conditions, the work impairment score, and the total lost working hours absent at companies in Japan. Eligible participants were all 544 workers of 4 manufacturing companies in the Kanto area. The Stanford Presenteeism Scale that was developed by Merck & Co., Inc and Stanford University was translated into Japanese and was given to the workers at a periodic health examination between April and June 2006. A total of 433 workers completed the questionnaire, and 48.9% of the participants reported having one or more chronic health conditions which affected their work performance. Allergy (13.3%) was the highest primary chronic health condition followed by back/neck disorders (9.7%). The work impairment score was higher for individuals with depression and migraine/chronic headache. The total lost working hours due to the primary chronic health conditions were 1.4% of the total working hours among the participants. The total lost working hours was highest for those with allergy followed by back/neck disorders and depression. These results should make it possible to develop an occupational health program that can reduce the effects of chronic health conditions on work performance.<br> (San Ei Shi 2007; 49: 103-109)<br>

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