Green tea and stomach cancer - A short review of prospective studies

Yoshiharu Hoshiyama, Takeshi Kawaguchi, Yoshihiko Miura, Tetsuya Mizoue, Noritaka Tokui, Hiroshi Yatsuya, Kiyomi Sakata, Takaaki Kondo, Shogo Kikuchi, Hideaki Toyoshima, Norihiko Hayakawa, Akiko Tamakoshi, Takesumi Yoshimura, Mitsuru Mori, Yutaka Motohashi, Ichiro Tsuji, Yosikazu Nakamura, Hiroyasu Iso, Haruo Mikami, Yutaka InabaYoshiharu Hoshiyama, Hiroshi Suzuki, Hiruyuki Shimizu, Kenji Wakai, Shinkan Tokudome, Yoshinori Ito, Shuji Hashimoto, Shogo Kikuchi, Akio Koizumi, Takashi Kawamura, Yoshiyuki Watanabe, Tsuneharu Miki, Chigusa Date, Takayuki Nose, Akira Shibata, Naoyuki Okamoto, Hideo Shio, Yoshiyuki Ohno, Tomoyuki Kitagawa, Toshio Kuroki, Kazuo Tajima

研究成果: ジャーナルへの寄稿学術論文査読

23 被引用数 (Scopus)

抄録

Background: In Japan, green tea has been drunk for a long time. Because it can be drunk casually, many people love drinking it. If such green tea has an effect to prevent stomach cancer, it will be a very convenient way to prevent the disease. Methods: To examine the association between green tea consumption and the risk of stomach cancer, past epidemiologic studies including JACC Study were reviewed. Results: Among eight case-control studies, five showed risk reduction with a statistically significant difference, and two studies showed risk reduction without a statistically significant difference. The remaining study showed the opposite result. Among six prospective studies regarding stomach cancer, no study showed risk reduction with a statistically significant difference. Four of the six studies showed no relation. In terms of study design, prospective studies, which are considered to be more reliable than case-controlled studies, tend to show no risk reduction. The results of case-control studies and prospective studies present considerably different impressions. Conclusions: Prospective studies showed no inverse association between the consumption of green tea and the risk of stomach cancer.

本文言語英語
ページ(範囲)S109-S112
ジャーナルJournal of epidemiology
15
SUPPL. 2
DOI
出版ステータス出版済み - 2005

All Science Journal Classification (ASJC) codes

  • 疫学

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