Dietary patterns and the risk of breast cancer in Japanese women - PubMed (original) (raw)

Comparative Study

Dietary patterns and the risk of breast cancer in Japanese women

Kaoru Hirose et al. Cancer Sci. 2007 Sep.

Abstract

Components of the Japanese diet that might contribute to the relatively low breast cancer incidence in Japanese women have not been clarified in detail. To evaluate associations between broad dietary patterns and breast cancer risk in a Japanese population, the authors conducted a case-control study using data from the hospital-based epidemiologic research program at Aichi Cancer Center (HERPACC). Factor analysis (principal components) was used to derive food patterns based on the 31 food variables and allowed designation of four major dietary patterns: prudent, fatty, Japanese and salty. In total, 1885 breast cancer cases were included and 22,333 female non-cancer patients were recruited as the control group. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were determined using multiple logistic regression analysis. After adjusting for potential confounders, there were no clear associations between the fatty, Japanese or salty dietary patterns and overall breast cancer risk. In contrast, an inverse association was evident for the prudent dietary. Women in the highest quartile of the prudent dietary pattern scores, had a 27% decreased risk of breast cancer compared with those in the lowest (95% CI: 0.63-0.84, p for trend < 0.0001). In addition, for women with a body mass index > or = 25, the highest quartile of the fatty factor score was associated with a 58% increment in breast cancer risk compared to the lowest quartile, with a significant linear trend (P = 0.027). The authors found the prudent dietary pattern to be negatively associated with breast cancer risk. In addition, the fatty and Japanese patterns may increase breast cancer risk among obese women.

PubMed Disclaimer

References

    1. Parkin DM, Whelan SL, Ferlay J, Teppo L, Thomas DB. Cancer Incidence in Five Continents, Vol. VIII, No. 155. Lyon: IARC, 2002.
    1. Hirose K, Imaeda N, Tokudome Y et al . Soybean products and reduction of breast cancer risk: a case‐control study in Japan. Br J Cancer 2005; 93: 15–22. -PMC -PubMed
    1. Yamamoto S, Sobue T, Kobayashi M, Sasaki S, Tsugane S. Soy, isoflavones, and breast cancer risk in Japan. J Natl Cancer Inst 2003; 95: 906–13. -PubMed
    1. Hirose K, Takezaki T, Hamajima N, Miura S, Tajima K. Dietary factors protective against breast cancer in Japanese premenopausal and postmenopausal women. In J Cancer 2003; 107: 276–82. -PubMed
    1. Wakai K, Tamakoshi K, Date C et al . Dietary intakes of fat and fatty acids and risk of breast cancer: a prospective study in Japan. Cancer Sci 2005; 96: 590–9. -PMC -PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources