Dairy consumption and lung cancer risk: a meta-analysis of prospective cohort studies
Authors Du H, Li H, Lin D, Li X, Hu C, Zhao X, Zhao X, Shao B
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 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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