Retrospective cohort study of the risk of obesity among shift workers: findings from the Industry-based Shift Workers' Health study, Japan

被引:51
作者
Kubo, Tatsuhiko [1 ]
Oyama, Ichiro [2 ]
Nakamura, Takehiro [3 ]
Shirane, Kiyoyumi [2 ]
Otsuka, Hirotake [2 ]
Kunimoto, Masamizu [2 ]
Kadowaki, Koji [2 ]
Maruyama, Takashi [4 ]
Otomo, Hajime [5 ]
Fujino, Yoshihisa [1 ]
Matsumoto, Tetsuro [6 ]
Matsuda, Shinya [1 ]
机构
[1] Univ Occupat & Environm Hlth, Sch Med, Dept Publ Hlth, Kitakyushu, Fukuoka 807, Japan
[2] Asahi Kasei, Nobeoka Off Hlth Care Ctr, Nobeoka, Japan
[3] Asahi Kasei Chem, Mizushima Works Hlth Care Ctr, Okayama, Japan
[4] Univ Occupat & Environm Hlth, Occupat Hlth Training Ctr, Kitakyushu, Fukuoka 807, Japan
[5] Univ Occupat & Environm Hlth, Sch Med, Dept Orthopaed Surg, Kitakyushu, Fukuoka 807, Japan
[6] Univ Occupat & Environm Hlth, Sch Med, Dept Urol, Kitakyushu, Fukuoka 807, Japan
关键词
BODY-MASS-INDEX; CARDIOVASCULAR-DISEASE; SOCIOECONOMIC-STATUS; POPULATION; IMPACT; MEN;
D O I
10.1136/oem.2009.054445
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Objectives The authors investigated the effect of shift working on the risk of obesity using data from the Industry-based Shift Workers' Health (IbSH) study, a retrospective cohort study based on a health care database system belonging to a manufacturing corporation in Japan. Methods The study database contains data on annual health check-ups and work schedules for every worker in the corporation in Japan since 1981. Study subjects consisted of 9912 male employees (8892 daytime workers and 920 rotating three-shift workers; mean age at first check-up was 23.7 years) whose work schedules were consistent during the follow-up period. Obesity was defined as a body mass index >= 25.0. Results 3319 cases of obesity were recorded over the 27.5 years of retrospective follow-up. Kaplan-Meier survival analysis visually demonstrated an increased risk of obesity among shift workers. The risk becomes particularly obvious after 10 years of follow-up. Cox proportional-hazards model analysis revealed a significantly increased risk among shift workers (RR 1.14, 95% CI 1.01 to 1.28). Conclusion The risk of obesity among male shift workers was visually and statistically demonstrated.
引用
收藏
页码:327 / 331
页数:5
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