The association of fish consumption with bladder cancer risk: a meta-analysis

The association between fish consumption and risk of bladder cancer has not been established yet. The results from epidemiological studies are inconsistent. We conducted a meta-analysis of cohort and case-control studies on the relationship between fish intake and bladder cancer. We quantified assoc...

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Bibliographic Details
Published in:World journal of surgical oncology 2011-09, Vol.9 (1), p.107-107, Article 107
Main Authors: Li, Zhongyi, Yu, Jianda, Miao, Qilong, Sun, Shuben, Sun, Lingjun, Yang, Houmen, Hou, Liejun
Format: Article
Language:English
Subjects:
Animals
Bladder cancer
Bladder neoplasms
Cancer
Care and treatment
Diet
Feeding Behavior
Fish
Fish as food
Fishes
Health aspects
Humans
Medical research
Meta-analysis
Morbidity
Nutrition
Prevention
Risk Assessment - methods
Risk Factors
Studies
Urinary Bladder Neoplasms - epidemiology
Urinary Bladder Neoplasms - etiology
Urinary Bladder Neoplasms - prevention & control
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Summary:The association between fish consumption and risk of bladder cancer has not been established yet. The results from epidemiological studies are inconsistent. We conducted a meta-analysis of cohort and case-control studies on the relationship between fish intake and bladder cancer. We quantified associations with bladder cancer using meta-analysis of relative risk associated to the highest versus the lowest category of fish intake using random effect models. Heterogeneity among studies was examined using Q and I2 statistics. Publication bias was assessed using the Begg's funnel plot. Five cohort and 9 case-control studies were eligible for inclusion. The combined relative risk showed that fish consumption was negatively, but not significantly, associated with a decreased risk of bladder cancer (relative risk, 0.86; 95% confidence interval, 0.61-1.12). In subgroup analyses, there was no evidence that study design, geographical region, case sample size, or exposure assessment substantially influenced the estimate of effects. The overall current literature on fish consumption and the risk of bladder cancer suggested no association. Because of the limited number of studies, further well-designed prospective studies are needed to explore the effect of fish on bladder cancer.
ISSN:1477-7819
1477-7819
DOI:10.1186/1477-7819-9-107