Adiposity, adult weight change and breast cancer risk in postmenopausal Japanese women: The miyagi cohort study

M. Kawai, Y. Minami, S. Kuriyama, M. Kakizaki, Y. Kakugawa, Y. Nishino, T. Ishida, A. Fukao, I. Tsuji, N. Ohuchi

研究成果: Article査読

56 被引用数 (Scopus)

抄録

Background: The role of adult weight change in breast cancer (BC) risk is unclear in Japanese women. Methods: A total of 10 106 postmenopausal women aged 40-64 years (the Miyagi Cohort) were followed from 1990 to 2003, and 108 BC cases were identified. Hazard ratios (HRs) were estimated according to body mass index (BMI) at the current age and at the of age 20 years, and weight change since age 20 years. Results: Higher current BMI was associated with an increased risk of BC (P for trend=0.02), whereas higher BMI at the age 20 years was inversely associated with this risk (P for trend=0.002). There was a significant association between weight change since age 20 years and BC risk (P for trend=0.0086). Compared with stable weight, HR was 0.35 for weight loss of 5 kg or more (P for weight loss trend=0.04) and 1.55 for weight gain of 12 kg or more (P for weight gain trend=0.05). Conclusion: Adiposity at younger and current age has differential effects on BC risk among postmenopausal women; weight gain in adulthood being associated with an increased, and weight loss with a decreased risk.

本文言語English
ページ(範囲)1443-1447
ページ数5
ジャーナルBritish Journal of Cancer
103
9
DOI
出版ステータスPublished - 26-10-2010

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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