| Title: | Sleep duration and risk of breast cancer : The JACC Study |
| Authors: | Cao, Jinhong Browse this author |
| Eshak, Ehab S. Browse this author |
| Liu, Keyang Browse this author |
| Muraki, Isao Browse this author →KAKEN DB |
| Cui, Renzhe Browse this author →KAKEN DB |
| Iso, Hiroyasu Browse this author →KAKEN DB |
| Tamakoshi, Akiko Browse this author →KAKEN DB |
| Mori, Mitsuru Browse this author |
| Kaneko, Yoshihiro Browse this author |
| Tsuji, Ichiro Browse this author |
| Nakamura, Yosikazu Browse this author |
| Yamagishi, Kazumasa Browse this author |
| Mikami, Haruo Browse this author |
| Kurosawa, Michiko Browse this author |
| Hoshiyama, Yoshiharu Browse this author |
| Tanabe, Naohito Browse this author |
| Tamakoshi, Koji Browse this author |
| Wakai, Kenji Browse this author |
| Tokudome, Shinkan Browse this author |
| Suzuki, Koji Browse this author |
| Hashimoto, Shuji Browse this author |
| Yatsuya, Hiroshi Browse this author |
| Kikuchi, Shogo Browse this author |
| Wada, Yasuhiko Browse this author |
| Kawamura, Takashi Browse this author |
| Watanabe, Yoshiyuki Browse this author |
| Ozasa, Kotaro Browse this author |
| Mikami, Kazuya Browse this author |
| Date, Chigusa Browse this author |
| Sakata, Kiyomi Browse this author |
| Kurozawa, Yoichi Browse this author |
| Yoshimura, Takesumi Browse this author |
| Fujino, Yoshihisa Browse this author |
| Shibata, Akira Browse this author |
| Okamoto, Naoyuki Browse this author |
| Shio, Hideo Browse this author |
| Keywords: | Sleep duration |
| Breast cancer |
| Incidence |
| Cohort study |
| Postmenopausal |
| Parity |
| Japan |
| Issue Date: | Feb-2019 |
| Publisher: | Springer |
| Journal Title: | Breast cancer research and treatment |
| Volume: | 174 |
| Issue: | 1 |
| Start Page: | 219 |
| End Page: | 225 |
| Publisher DOI: | 10.1007/s10549-018-4995-4 |
| PMID: | 30460465 |
| Abstract: | PurposeThe evidence on beneficial or adverse effects of sleep duration on risk of breast cancer remains controversial and limited, especially in Asia.MethodsA prospective study of 34,350 women aged 40-79years in whom sleep duration, and menstrual and reproductive histories were determined by a self-administered questionnaire. The follow-up period was from 1988 to 2009, and hazard ratios (HRs) with 95% confidence intervals (CIs) of breast cancer incidence were calculated for shorter sleep duration in reference to sleep duration of 8h/day by Cox proportional hazard models.ResultsDuring 19.2-year median follow-up (236 cases), we found a significant inverse association between sleep duration and risk of breast cancer, especially among postmenopausal women and women with low parity (nulliparous and women with <3 children); the multivariable HRs (95% CIs) among postmenopausal women who reported 7h/day and 6h/day of sleep in reference to 8h/day were 1.49 (0.81-2.76) and 1.98 (1.08-3.70) (P for trend=0.028), respectively, and the corresponding values among women with low parity were 1.50 (0.96-2.35) and 1.76 (1.01-2.79) (P for trend=0.018).ConclusionsShort sleep duration was associated with increased risk of incident breast cancer, especially among postmenopausal women and women with low parity. |
| Rights: | The final publication is available at link.springer.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/76650 |
| Appears in Collections: | 医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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