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Published on: November 15, 2013
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Wu Zhihui1, Yan Weihua, Wu Zupei
1The 2nd Surgical Department. Shunde Hospital of Traditional Chinese Medicine. Foshan, China. wuzhihuifs@163.com.
Nutricion Hospitalaria
|August 12, 2016
Summary
This meta-analysis found no overall association between fish consumption and breast cancer risk. However, lean fish consumption showed a potential small increase in risk, warranting further investigation.
Area of Science:
- Nutrition and Cancer Epidemiology
- Oncology Research
- Public Health Nutrition
Background:
- The relationship between dietary habits, specifically fish consumption, and the incidence of breast cancer remains unclear.
- Epidemiological studies investigating this association have yielded inconsistent results, necessitating a comprehensive review.
Purpose of the Study:
- To conduct a meta-analysis to systematically evaluate the association between fish consumption and the risk of developing breast cancer.
- To synthesize findings from existing epidemiological studies to provide a clearer understanding of this relationship.
Main Methods:
- A systematic literature search was performed in Medline and EMBASE databases up to February 2015.
- Eligible studies and their reference lists were reviewed.
- Summary relative risks (RR) and 95% confidence intervals (CI) were calculated using a random-effects model.
Main Results:
- Twenty-seven studies were included in the meta-analysis.
- The overall summary RR for the highest versus lowest fish consumption was 0.96 (95% CI = 0.87–1.07), indicating no significant association.
- A subgroup analysis of four studies on lean fish consumption suggested a small increase in breast cancer risk (summary RR = 1.09, 95% CI = 1.00–1.19), though this finding requires cautious interpretation due to the limited number of studies.
Conclusions:
- The current body of evidence does not support an association between overall fish consumption and breast cancer risk.
- Further high-quality prospective studies are recommended to investigate the nuanced relationship between specific types of fish consumption and breast cancer risk.
