Cited by 174Circadian rhythm and melatoninSleep and Work-Related FatigueCancer Risks and Factors

Does night work increase the risk of breast cancer? A systematic review and meta-analysis of epidemiological studies

Jia, Yijun, Lu, Yunshu, Wu, Kejin, Lin, Qing, Shen, Wei, Zhu, Mingjie, Huang, Shuo, Chen, Jian·2013·Cancer Epidemiology

Abstract

Objective To conduct a systematic review, with meta-analysis, of studies assessing the association between night work and the risk of breast cancer, using available epidemiological evidence.Method Relevant studies were identified by searching several databases and the reference lists of retrieved articles. We combined the relative risks (RR) from individual studies using a random-effects model. Subgroup analysis was carried out as the data showed statistically significant heterogeneity.Results Thirteen studies consisting of eight case-control studies and five cohort studies were included in the analysis. In the combined analysis of all studies, night work was associated with an increased risk for breast cancer (RR = 1.20, 95%CI = 1.08-1.33). The higher-quality studies showed a similar finding with a pooled RR of 1.40 (95%CI = 1.13-1.73). Both case-control studies (RR = 1.32, 95%CI = 1.17-1.50) and cohort studies (RR=1.08, 95%CI = 0.97-1.21) showed a positive association between night work and the risk of breast cancer. No publication bias was found either from Begg's funnel plot (P = 0.086) or the Egger's test (P = 0.107). Additional well-conducted and large-scale epidemiological studies are needed.

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Crossref · 10.1016/j.canep.2013.01.005

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  • Observational studies consistently suggest positive associations of night shift work with cardiovascular disease and cancer risk.

    “Observational studies consistently suggest positive associations of night shift work and cardiovascular disease (CVD)2 and cancer risk.3-18”

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Authors
Jia, Y., Lu, Y., Wu, K., Lin, Q., Shen, W., Zhu, M., Huang, S., & Chen, J.
Affiliations
Shanghai Jiao Tong University (CN)
Corresponding author
Wu, Kejin
Venue
Cancer Epidemiology
Publisher
Elsevier BV
Published
2013-06
Volume
37
Issue
3
Pages
197-206
ISSN
1877-7821 (ISSN-L)
OpenAlex
W1987197677
Cited by
174
References
48
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 5 · 2022: 9 · 2021: 15 · 2020: 14 · 2019: 12 · 2018: 17 · 2017: 23 · 2016: 22 · 2015: 19 · 2014: 18 · 2013: 11
FWCI
2.78
Type
journal article
Language
en
Open access
closed
Locations
  • Cancer Epidemiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Health Sciences › Medicine › Oncology › Cancer Risks and Factors
Keywords
night work, breast cancer, shift work, circadian rhythm disruption, cancer risk, occupational exposure
MeSH terms
Breast Neoplasms, Circadian Rhythm, Female, Humans, Risk Factors, Work Schedule Tolerance, Cohort Studies, Incidence, Case-Control Studies

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