イワモト　タカユキ   Takayuki Iwamoto   岩本　高行    所属   川崎医科大学  医学部 臨床医学　乳腺甲状腺外科学    職種   講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Association between mammographic breast density and lifestyle in Japanese women.
掲載誌名	正式名：Acta medica Okayama 略　 称：Acta Med Okayama ISSNコード：0386300X/0386300X
掲載区分	国外
巻・号・頁	67(3),pp.145-51
著者・共著者	Setsuko Ishihara, Naruto Taira, Kensuke Kawasaki, Youichi Ishibe, Taeko Mizoo, Keiko Nishiyama, Takayuki Iwamoto, Tomohiro Nogami, Takayuki Motoki, Tadahiko Shien, Junji Matsuoka, Hiroyoshi Doihara, Yoshifumi Komoike, Shuhei Sato, Susumu Kanazawa
発行年月	2013
概要	A high mammographic breast density is considered to be a risk factor for breast cancer. However, only a small number of studies on the association between breast density and lifestyle have been performed. A cross-sectional study was performed using a survey with 29 questions on life history and lifestyle. The breast density on mammography was classified into 4 categories following the BI-RADS criteria. The subjects were 522 women with no medical history of breast cancer. The mean age was 53.3 years old. On multivariate analysis, only BMI was a significant factor determining breast density in premenopausal women (parameter estimate, -0.403; p value, 0.0005), and the density decreased as BMI rose. In postmenopausal women, BMI (parameter estimate, -0.196; p value, 0.0143) and number of deliveries (parameter estimate, -0.388; p value, 0.0186) were significant factors determining breast density;breast density decreased as BMI and number of deliveries increased. Only BMI and number of deliveries were identified as factors significantly influencing breast density. BMI was inversely correlated with breast density before and after menopause, whereas the influence of number of deliveries on breast density was significant only in postmenopausal women in their 50 and 60s.
DOI	10.18926/AMO/50407
PMID	23804137