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Television Viewing Time and Breast Cancer Incidence or Japanese Premenopausal and Postmenopausal Women : The JACC Study

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Title: Television Viewing Time and Breast Cancer Incidence or Japanese Premenopausal and Postmenopausal Women : The JACC Study
Authors: Cao, Jinhong Browse this author
Eshak, Ehab Salah Browse this author →KAKEN DB
Liu, Keyang Browse this author
Muraki, Isar Browse this author
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
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
Kurozawa, Yoichi Browse this author
Keywords: Television viewing time
Breast neoplasms
Incidence
Cohort study
Postmenopausal
Body mass index
Japan
Issue Date: Oct-2019
Publisher: Korean cancer association
Journal Title: Cancer research and treatment
Volume: 51
Issue: 4
Start Page: 1509
End Page: 1517
Publisher DOI: 10.4143/crt.2018.705
Abstract: Purpose The evidence on effects of TV viewing time among premenopausal and postmenopausal women for breast cancer risk remains controversial and limited. Materials and Methods A prospective study encompassing 33,276 (17,568 premenopausal, and 15,708 postmenopausal) women aged 40-79 years in whom TV viewing time, menstrual, and reproductive histories were determined by a self-administered questionnaire. The follow-up was from 1988 to 2009 and hazard ratios (HRs) with 95% confidence intervals (as) of breast cancer incidence were calculated for longer TV viewing time in reference to shorter TV viewing time by Cox proportional hazard models. Results During 16.8-year median follow-up, we found positive associations between TV viewing time and breast cancer incidence with a borderline significant trend among total women and a significant trend among postmenopausal women. Among total women, the multivariable HRs (95% Cis) for risk of breast cancer in reference to < 1.5 hr/day of TV viewing time were 0.89 (0.59-1.34) for 1.5 to < 3.0 hr/day, 1.19 (0.82-1.74) for 3.0 to < 4.5 hr/day, and 1.45 (0.91-2.32) for >= 4.5 hr/day (p for trend=0.053) and among postmenopausal women, the corresponding risk estimates were 1.10 (0.42-2.88), 2.54 (1.11-5.80), and 2.37 (0.926.10) (p for trend=0.009), respectively. Conclusion Prolonged TV viewing time was associated with increased risk of breast cancer, especially among postmenopausal women.
Rights: https://creativecommons.org/licenses/by-nc/4.0/
Type: article
URI: http://hdl.handle.net/2115/76191
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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