No Association between Egg Intake and Prostate Cancer Risk: A Meta-analysis

Objective: Egg consumption has been suggested to increase the risk of colorectal and some other cancers.The present study summarized and quantified the current evidence relating dietary intake of eggs and prostatecancer. Materials and methods: Literature searches were conducted to identify peer-reviewed manuscriptspublished up to July 2012. Twenty manuscripts from nine cohort studies and 11 case-control studies wereidentified. Summary risk estimates with 95% confidence intervals (CIs) were calculated for case-control andcohort studies separately.
Results: Neither the case-control not the cohort studies showed any association ofprostate cancer incidence with egg consumption (case-control studies: odds ratio 1.09, 95% CI 0.86-1.31; cohortstudies: relative risk 0.97, 95% CI 0.97-1.07). The results were consistent in subgroup analysis. Furthermore,no association was observed between egg consumption and prostate cancer-specific mortality.
Conclusions: Ouranalyses provided no evidence of a significant influence of egg consumption on prostate cancer incidence andmortality. However, more studies, particularly large prospective studies, are needed.