Meta-analysis2017Open access

Red and processed meat consumption and gastric cancer risk: a systematic review and meta-analysis

Zhao Z, Yin Z, Zhao Q

Oncotarget · 48 citations

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Not stated

Who paid for it

Funding
Independent funding
Government
National Natural Science Foundation of China
Grants
National Natural Science Foundation of China (81370564)

Based on 1 listed funder(s) and full-text disclosure statement.

Publication

Published
2017-02-25 · Oncotarget · vol. 8 · issue 18 · pp. 30563–30575
Publisher
Impact Journals LLC
Cited
64 citations · more than 68% of similar papers · 1.0× the field average
References
26 works
Access
Open access (free to publish) · CC-BY
Research areas
Gastric Cancer Management and Outcomes · Colorectal Cancer Screening and Detection · Helicobacter pylori-related gastroenterology studies
Keywords
Medicine, Meta-analysis, Cancer, Processed meat, Red meat, Internal medicine, Consumption (sociology), Oncology, Bioinformatics, Environmental health, Food science, Pathology, Biology
MeSH
animals, humans, stomach neoplasms, risk, meat products, publication bias, red meat

3 authors

From CN

  • Zhanwei Zhao · correspondingXijing Hospital; Air Force Medical University
  • Zifang YinNorthwest Women's and Children's Hospital
  • Qingchuan ZhaoXijing Hospital; Air Force Medical University

Abstract

The associations between red and processed meat consumption and gastric cancer risk have remained inconclusive. We performed a systematic review and meta-analysis to analyze these associations. We searched PubMed and EMBASE to identify studies published from inception through October 2016. Subtype analyses of gastric cancer (gastric cardia adenocarcinoma and gastric non-cardiac adenocarcinoma) and dose-response analyses were performed. We finally selected 42 eligible studies. The summary relative risks of highest versus lowest consumption were positive for case-control studies with 1.67 (1.36-2.05) for red meat and 1.76 (1.51-2.05) for processed meat, but negative for cohort studies with 1.14 (0.97-1.34) for red meat and 1.23 (0.98-1.55) for processed meat. Subtype analyses of cohort studies suggested null results for gastric cardia adenocarcinoma (red meat, P = 0.79; processed meat, P = 0.89) and gastric non-cardiac adenocarcinoma (red meat, P = 0.12; processed meat, P = 0.12). In conclusion, the present analysis suggested null results between red and processed meat consumption and gastric cancer risk in cohort studies, although case-control studies yielded positive associations. Further well-designed prospective studies are needed to validate these findings.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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