Overtime Work and Prevalence of Diabetes in Japanese Employees: Japan Epidemiology Collaboration on Occupational Health Study

Keisuke Kuwahara, Teppei Imai, Akiko Nishihara, Tohru Nakagawa, Shuichiro Yamamoto, Toru Honda, Toshiaki Miyamoto, Takeshi Kochi, Masafumi Eguchi, Akihiko Uehara, Reiko Kuroda, Daisuke Omoto, Kayo Kurotani, Ngoc Minh Pham, Akiko Nanri, Isamu Kabe, Tetsuya Mizoue, Naoki Kunugita, Seitaro Dohi and Japan Epidemiology Collaboration on Occupational Health Study Group

PLOS ONE, 2014, vol. 9, issue 5, 1-7

Abstract: Objective: Epidemiologic evidence on long working hour and diabetes has been conflicting. We examined the association between overtime work and prevalence of diabetes among Japanese workers. Methods: The subjects were 40,861 employees (35,170 men and 5,691 women), aged 16 to 83 years, of 4 companies in Japan. Hours of overtime were assessed using self-reported questionnaires. Diabetes was defined as a fasting plasma glucose ≥126 mg/dl (7.0 mmol/l), hemoglobin A1c ≥6.5% (48 mmol/mol), or current use of anti-diabetic drug. Multiple logistic regression analysis was used to calculate odds ratio of diabetes for each category of overtime. Results: After adjustment for age, sex, company, smoking, and BMI, there was a suggestion of U-shaped relationship between overtime work and prevalence of diabetes (P for quadratic trend = 0.07). Compared with those who worked

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0095732

DOI: 10.1371/journal.pone.0095732

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