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Journal Article
Meta-Analysis
Association between selenium intake and the risk of pancreatic cancer: a meta-analysis of observational studies.
Bioscience Reports 2016 October
Quantification of the association between the intake of selenium and risk of pancreatic cancer is still conflicting. Thus, we conducted a meta-analysis to summarize the evidence from epidemiological studies of selenium intake with the risk of pancreatic cancer. Pertinent studies were identified by a search of PubMed and Web of Knowledge to July 2016. The random-effect model was used. Sensitivity analysis and publication bias were conducted. Data from six studies including 1424 pancreatic cancer cases were used in this meta-analysis. Pooled results suggested that highest selenium intake amount compared with lowest amount was significantly associated with the risk of pancreatic cancer [summary relative risk (RR)=0.659, 95% confidence interval (CI)=0.489-0.889, I2 =47.6%]. The associations were significant both in case-control studies [RR=0.618, 95%CI=0.399-0.956, I2 =59.1%] and Americas [RR=0.570, 95%CI=0.357-0.909, I2 =65.6%]. No publication bias was found. Our analysis suggested that the higher intake of selenium might reduce the risk of pancreatic cancer.
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