Study of chronic pain and its associated risk factors among Japanese industry workers: the Quality of Working Life Influenced by Chronic pain (QWLIC) study

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  • Yamada Keiko
    Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine Center for Pain Management, Osaka University Hospital
  • Wakaizumi Kenta
    Department of Anesthesiology, Keio University School of Medicine
  • Fukai Kyosuke
    Lead Well, INC.
  • Iso Hiroyasu
    Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
  • Sobue Tomotaka
    Environmental Medicine, Department of Social Medicine, Osaka University Graduate School of Medicine
  • Shibata Masahiko
    Center for Pain Management, Osaka University Hospital Center for Pain Management, Osaka University Hospital
  • Matsudaira Ko
    Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, Faculty of Medicine, The University of Tokyo

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Other Title
  • 就労環境における慢性痛の実態調査～仕事に影響する慢性痛のリスク因子の検討：QWLICスタディ
  • シュウロウ カンキョウ ニ オケル マンセイツウ ノ ジッタイ チョウサ : シゴト ニ エイキョウ スル マンセイツウ ノ リスク インシ ノ ケントウ : QWLIC スタディ

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Abstract

<p>Objectives: This study was performed to identify the prevalence, influence, and risk factors associated with chronic pain among Japanese industry workers. Methods: We investigated 2,544 participants working at a manufacturing company A, a manufacturing company B, and 16 branch shops of a retail chain company C. The participants responded to self-administered questionnaires related to pain. Furthermore, data obtained from the lifestyle interview sheet of an annual health screening examination and those obtained from the questionnaires were merged. We analyzed the association between lifestyles, psychosocial factors, and chronic pain. Age- and sex-adjusted odds ratios were calculated with a 95% confidence interval using the logistic regression model. Results: Of 2,544 participants, 1,914 (1,224 men and 690 women) completed the questionnaire, and the response rate was 75.2%. The prevalence of chronic pain over 3 months was 42.7% and that of chronic pain with work disability was 11.3%. A higher proportion of obesity, smoking habit, insomnia, psychological stress, depressive state, workaholic nature, low social support from supervisors and coworkers, high job demand, low job control, and job dissatisfaction was observed in workers with chronic pain than in workers without pain. Conclusions: Several risk factors of chronic pain in Japanese industry workers were found. Obesity, smoking habits, sleep disorders, workplace environment, and mental state should be taken into account as risk factors associated with chronic pain issues and general occupational health.</p>

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