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Dairy consumption and lung cancer risk: a meta-analysis of prospective cohort studies

Authors Yu Y, Li H, Xu K, Li X, Hu C, Wei H, Zeng X, Jing X

Received 4 September 2015

Accepted for publication 11 November 2015

Published 30 December 2015 Volume 2016:9 Pages 111—116


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Jia Fan

Peer reviewer comments 2

Editor who approved publication: Professor Daniele Santini

Yi Yu,1,* Hui Li,1,* Kaiwu Xu,2,* Xin Li,1 Chunlin Hu,1 Hongyan Wei,1 Xiaoyun Zeng,1 Xiaoli Jing1

1Emergency Department, 2Gastrointestinal Surgery Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, People’s Republic of China

*These authors contributed equally to this work

Background: Lung cancer risk is the leading cause of cancer-related deaths worldwide. We conducted a meta-analysis to evaluate the relationship between dairy consumption and lung cancer risk.
Methods: The databases included EMBASE, Medline (PubMed), and Web of Science. The relationship between dairy consumption and lung cancer risk was analyzed by relative risk or odds ratio estimates with 95% confidence intervals (CIs). We identified eight prospective cohort studies, which amounted to 10,344 cases and 61,901 participants.
Results: For milk intake, relative risk was 0.95 (95% CI: 0.76–1.15); heterogeneity was 70.2% (P=0.003). For total dairy product intake, relative risk was 0.96 (95% CI: 0.89–1.03), heterogeneity was 68.4% (P=0.004).
Conclusion: There was no significant association between dairy consumption and lung cancer risk.

Keywords: lung cancer, meta-analysis, milk, dairy products

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