The Japanese Breast Cancer Society clinical practice guidelines for epidemiology and prevention of breast cancer, 2015 edition
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In the section entitled “Risk factors for breast cancer” in the 2013 edition, a decrease in breast cancer risk due to obesity in premenopausal women was determined to be probable. However, a large-scale pooled analysis in Japanese women reported in 2014 showed a significant increase in breast cancer risk in premenopausal women with a high body mass index. Due to this report, the description has been changed to “obesity may increase the risk of breast cancer in premenopausal women” in the 2015 edition. Body mass in Asian women might have opposite effects on breast cancer compared to that in Western women.
In the section entitled “Risk assessment...
KeywordsBreast Cancer Breast Cancer Risk Mammographic Density National Comprehensive Cancer Network Japanese Woman
This work was sponsored by The Japan Breast Cancer Society. We thank the clinical practice guidelines committee and clinical practice guidelines assessment committee for their support of this work.
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Conflict of interest
Naruto Taira received a research grant from Astra Zeneca; Masami Arai has no conflict of interest; Masahiko Ikeda received lecture fees from Chugai; Motoki Iwasaki has no conflict of interest; Hitoshi Okamura has no conflict of interest; Kiyoshi Takamatsu has no conflict of interest; Tsunehisa Nomura has no conflict of interest; Seiichiro Yamamoto has no conflict of interest; Yoshinori Ito received manuscript fees from Chugai, Eisai and Novartis, and received research funding from Novartis, Chugai, Parexel, Eisai, Sanofi, Taiho, EPS, Dai-ichi-sankyo, and Boehringer-ingelheim; Hirofumi Mukai has no conflict of interest.
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