NDLI: Dietary phytoestrogen intake—lignans and isoflavones

Content Provider	Springer Nature Link
Author	Cotterchio, Michelle Boucher, Beatrice A. Kreiger, Nancy Mills, Catherine A. Thompson, Lilian U.
Copyright Year	2007
Abstract	To evaluate whether phytoestrogen intake is associated with reduced breast cancer risk, using a novel phytoestrogen database.Population-based breast cancer cases aged 25–74 years (diagnosed 2002–2003) were identified using Ontario Cancer Registry (n = 3,063) and controls (n = 3,430) were an age-stratified random sample of women identified through random digit dialing. An epidemiologic and Block food frequency questionnaire—expanded to include phytoestrogen-containing foods—was mailed to all subjects. The recently published Ontario phytoestrogen database was applied to FFQ responses to estimate intake. Multivariate logistic regression provided odds ratio (OR) estimates, while controlling for confounders.Among all women, lignan intake was associated with a reduced breast cancer risk (Q5 vs. Q1 MVOR: 0.81, 95% CI: 0.65, 0.99); however, following stratification by BMI, this reduction in risk was statistically significant only among overweight (BMI > 25) women. Total phytoestrogen intake was also associated with a risk reduction among overweight women only. Among pre-menopausal women, total phytoestrogen intake was associated with a significant reduction in breast cancer risk among overweight women only (Q5 vs. Q1 MVOR: 0.51, 95% CI: 0.30, 0.87). Among post-menopausal women, no statistically significant association was observed between breast cancer risk and isoflavones or lignans.Lignan intake may be associated with reduced breast cancer risk among pre-menopausal women, and our data suggest BMI modifies this association.
Starting Page	259
Ending Page	272
Page Count	14
File Format	PDF
ISSN	09575243
Journal	Cancer Causes & Control
Volume Number	19
Issue Number	3
e-ISSN	15737225
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-11-09
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Phytoestrogen Lignan Breast cancer Dietary intake Case–control Hematology Epidemiology Public Health/Gesundheitswesen Oncology Biomedicine general Cancer Research
Content Type	Text
Resource Type	Article
Subject	Cancer Research Oncology

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