論文

査読有り
2018年1月1日

Alcohol consumption and breast cancer risk according to hormone receptor status in Japanese women: A case-control study

Tohoku Journal of Experimental Medicine
  • Yoko Takizawa
  • ,
  • Masaaki Kawai
  • ,
  • Yoichiro Kakugawa
  • ,
  • Yoshikazu Nishino
  • ,
  • Noriaki Ohuchi
  • ,
  • Yuko Minami

244
1
開始ページ
63
終了ページ
73
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1620/tjem.244.63
出版者・発行元
Tohoku University Medical Press

Alcohol consumption is a risk factor for breast cancer in Western countries, but few studies have evaluated the risk for Japanese women, who have a relatively low alcohol intake. This case-control study investigated the association of alcohol consumption with breast cancer risk according to estrogen-receptor and progesterone-receptor (ER/PgR) status in Japanese women. From female patients aged 30 years and over admitted to a single hospital in Japan between 1997 and 2011, 1,256 breast cancer cases (669 ER+/ PgR+, 162 ER+/PgR-, 21 ER-/PgR+, 305 ER-/PgR-, and 99 missing) and 2,933 controls were selected. Alcohol-related measures were assessed using a self-administered questionnaire. Unconditional logistic regression analysis was performed. Alcohol-related measures were not associated with breast cancer risk among the women overall. Moreover, no association was observed between ever drinking and the risk of a concordant receptor subtype (ER+/PgR+ or ER-/PgR-). Conversely, ever drinking was inversely associated with the risk of discordant subtype (ER+/PgR-, odds ratio (OR) = 0.63, 95% confidence interval (CI): 0.41-0.95
ER-/PgR+, OR = 0.44, 95% CI: 0.14-1.42). For ER+/PgR-, an inverse association with the amount of alcohol consumed per day was observed (P for trend = 0.04), and this inverse association was limited to premenopausal women. Alcohol consumption may have differential effects on concordant and discordant receptor subtypes of breast cancer. In view of the low frequency of discordant subtype in Japanese women and their relatively low alcohol intake, our findings may provide a clue for elucidating the etiology of breast cancer rather than for preventing discordant subtype.

リンク情報
DOI
https://doi.org/10.1620/tjem.244.63
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/29353824
ID情報
  • DOI : 10.1620/tjem.244.63
  • ISSN : 1349-3329
  • ISSN : 0040-8727
  • PubMed ID : 29353824
  • SCOPUS ID : 85041735600

エクスポート
BibTeX RIS