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Night shift work exposure profile and obesity: Baseline results from a Chinese night shift worker cohort

Author

Listed:
  • Miaomiao Sun
  • Wenting Feng
  • Feng Wang
  • Liuzhuo Zhang
  • Zijun Wu
  • Zhimin Li
  • Bo Zhang
  • Yonghua He
  • Shaohua Xie
  • Mengjie Li
  • Joan P C Fok
  • Gary Tse
  • Martin C S Wong
  • Jin-ling Tang
  • Samuel Y S Wong
  • Jelle Vlaanderen
  • Greg Evans
  • Roel Vermeulen
  • Lap Ah Tse

Abstract

Aims: This study aimed to evaluate the associations between types of night shift work and different indices of obesity using the baseline information from a prospective cohort study of night shift workers in China. Methods: A total of 3,871 workers from five companies were recruited from the baseline survey. A structured self-administered questionnaire was employed to collect the participants’ demographic information, lifetime working history, and lifestyle habits. Participants were grouped into rotating, permanent and irregular night shift work groups. Anthropometric parameters were assessed by healthcare professionals. Multiple logistic regression models were used to evaluate the associations between night shift work and different indices of obesity. Results: Night shift workers had increased risk of overweight and obesity, and odds ratios (ORs) were 1.17 (95% CI, 0.97–1.41) and 1.27 (95% CI, 0.74–2.18), respectively. Abdominal obesity had a significant but marginal association with night shift work (OR = 1.20, 95% CI, 1.01–1.43). A positive gradient between the number of years of night shift work and overweight or abdominal obesity was observed. Permanent night shift work showed the highest odds of being overweight (OR = 3.94, 95% CI, 1.40–11.03) and having increased abdominal obesity (OR = 3.34, 95% CI, 1.19–9.37). Irregular night shift work was also significantly associated with overweight (OR = 1.56, 95% CI, 1.13–2.14), but its association with abdominal obesity was borderline (OR = 1.26, 95% CI, 0.94–1.69). By contrast, the association between rotating night shift work and these parameters was not significant. Conclusion: Permanent and irregular night shift work were more likely to be associated with overweight or abdominal obesity than rotating night shift work. These associations need to be verified in prospective cohort studies.

Suggested Citation

  • Miaomiao Sun & Wenting Feng & Feng Wang & Liuzhuo Zhang & Zijun Wu & Zhimin Li & Bo Zhang & Yonghua He & Shaohua Xie & Mengjie Li & Joan P C Fok & Gary Tse & Martin C S Wong & Jin-ling Tang & Samuel Y, 2018. "Night shift work exposure profile and obesity: Baseline results from a Chinese night shift worker cohort," PLOS ONE, Public Library of Science, vol. 13(5), pages 1-14, May.
  • Handle: RePEc:plo:pone00:0196989
    DOI: 10.1371/journal.pone.0196989
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    References listed on IDEAS

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    1. Yanjun Guo & Yuewei Liu & Xiji Huang & Yi Rong & Meian He & Youjie Wang & Jing Yuan & Tangchun Wu & Weihong Chen, 2013. "The Effects of Shift Work on Sleeping Quality, Hypertension and Diabetes in Retired Workers," PLOS ONE, Public Library of Science, vol. 8(8), pages 1-6, August.
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    1. Aaron Bezzina & Emma K Austin & Trent Watson & Lee Ashton & Carole L James, 2021. "Health and wellness in the Australian coal mining industry: A cross sectional analysis of baseline findings from the RESHAPE workplace wellness program," PLOS ONE, Public Library of Science, vol. 16(6), pages 1-20, June.
    2. Atish Mukherji & Frank Jühling & Yogy Simanjuntak & Emilie Crouchet & Fabio Zompo & Yuji Teraoka & Alexandre Haller & Philippe Baltzinger & Soumith Paritala & Fahmida Rasha & Naoto Fujiwara & Cloé Gad, 2024. "An atlas of the human liver diurnal transcriptome and its perturbation by hepatitis C virus infection," Nature Communications, Nature, vol. 15(1), pages 1-14, December.

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