Effects of isoflavones on breast density in pre- and post-menopausal women: a systematic review and meta-analysis of randomized controlled trials.

Hum Reprod Update · 2010 · PMC2953939 · PMID 20511398

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a significant trendno p-value reported

A recent meta-analysis of cohort and case–control data on soy intake and breast cancer showed soy to be associated with a small reduction in risk ( Trock et al ., 2006 ) whereas another found a significant trend of reduced breast cancer risk with increasing soy food intake ( Wu et al ., 2008 ).

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