期刊
PUBLIC HEALTH NUTRITION
卷 12, 期 6, 页码 825-831出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S136898000800325X
关键词
Breast cancer; Diet; Phyto-oestrogens; Flavonols; Lignans; Flavones; Mexico
资金
- Consejo Nacional de Ciencia y Tecnologia de Mexico (CONACyT)
- Fogarty International Center of the National Institutes of Health [D43TW00640]
- FOGARTY INTERNATIONAL CENTER [D43TW000640] Funding Source: NIH RePORTER
Objective: To perforin an evaluation of selected phytochemicals intake and breast cancer (BC) risk in Mexican women. Design,: We conducted hospital-based case-control study. Setting: Mexico City between 1994 and 1996. Subjects: A total of 141 histologically confirmed BC cases were age-matched (+/- 3 years) to an equal number of hospital controls. The reproductive history of each woman was obtained by direct interview. The dietary consumption of flavonols, flavones, flavan-3-ols, cinnamic acid, lariciresinol, pinoresinol, secoisolariciresinol, matairesinol and coumestrol was obtained by means of a validated FFQ. Results: Among postmenopausal women, high dietary intake of flavonols and flavones was associated with a significant reduction of BC risk (high v. low tertile: OR = 0.21, 95 % CI 0.07, 0.60, P for trend = 0.004 and OR = 0.29, 95% CI 0.10, 0.82, P for trend = 0.025, respectively); consumption of lignans (lariciresinol and pinoresinol) showed a similar effect, but only among premenopausal women (high v. low tertile: OR = 0.32, 95 % CI 0.10, 0.99, P for trend = 0.051 and OR = 0.19, 95 % CI 0.06, 0.62, P for trend = 0.006, respectively). Conclusions: Our results Support a protective role of specific dietary phytochemicals in BC risk by menopausal status, independent of other reproductive factors.
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