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 Inaba; Yoshiharu 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

doi:10.2188/jea.15.S109

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

Hygiene

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	S109-S112
Journal	Journal of epidemiology
Volume	15
Issue number	SUPPL. 2
DOIs	https://doi.org/10.2188/jea.15.S109
Publication status	Published - 2005

All Science Journal Classification (ASJC) codes

Epidemiology

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Hoshiyama, Y., Kawaguchi, T., Miura, Y., Mizoue, T., Tokui, N., Yatsuya, H., Sakata, K., Kondo, T., Kikuchi, S., Toyoshima, H., Hayakawa, N., Tamakoshi, A., Yoshimura, T., Mori, M., Motohashi, Y., Tsuji, I., Nakamura, Y., Iso, H., Mikami, H., ... Tajima, K. (2005). Green tea and stomach cancer - A short review of prospective studies. Journal of epidemiology, 15(SUPPL. 2), S109-S112. https://doi.org/10.2188/jea.15.S109

Hoshiyama, Yoshiharu ; Kawaguchi, Takeshi ; Miura, Yoshihiko ; Mizoue, Tetsuya ; Tokui, Noritaka ; Yatsuya, Hiroshi ; Sakata, Kiyomi ; Kondo, Takaaki ; Kikuchi, Shogo ; Toyoshima, Hideaki ; Hayakawa, Norihiko ; Tamakoshi, Akiko ; Yoshimura, Takesumi ; Mori, Mitsuru ; Motohashi, Yutaka ; Tsuji, Ichiro ; Nakamura, Yosikazu ; Iso, Hiroyasu ; Mikami, Haruo ; Inaba, Yutaka ; Hoshiyama, Yoshiharu ; Suzuki, Hiroshi ; Shimizu, Hiruyuki ; Wakai, Kenji ; Tokudome, Shinkan ; Ito, Yoshinori ; Hashimoto, Shuji ; Kikuchi, Shogo ; Koizumi, Akio ; Kawamura, Takashi ; Watanabe, Yoshiyuki ; Miki, Tsuneharu ; Date, Chigusa ; Nose, Takayuki ; Shibata, Akira ; Okamoto, Naoyuki ; Shio, Hideo ; Ohno, Yoshiyuki ; Kitagawa, Tomoyuki ; Kuroki, Toshio ; Tajima, Kazuo. / Green tea and stomach cancer - A short review of prospective studies. In: Journal of epidemiology. 2005 ; Vol. 15, No. SUPPL. 2. pp. S109-S112.

@article{13dfbf8548bd4ee9a59581af1292e168,

title = "Green tea and stomach cancer - A short review of prospective studies",

abstract = "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.",

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

year = "2005",

doi = "10.2188/jea.15.S109",

language = "English",

volume = "15",

pages = "S109--S112",

journal = "Journal of Epidemiology",

issn = "0917-5040",

publisher = "Japan Epidemiology Association",

number = "SUPPL. 2",

}

Hoshiyama, Y, Kawaguchi, T, Miura, Y, Mizoue, T, Tokui, N, Yatsuya, H, Sakata, K, Kondo, T, Kikuchi, S, Toyoshima, H, Hayakawa, N, Tamakoshi, A, Yoshimura, T, Mori, M, Motohashi, Y, Tsuji, I, Nakamura, Y, Iso, H, Mikami, H, Inaba, Y, Hoshiyama, Y, Suzuki, H, Shimizu, H, Wakai, K, Tokudome, S, Ito, Y, Hashimoto, S, Kikuchi, S, Koizumi, A, Kawamura, T, Watanabe, Y, Miki, T, Date, C, Nose, T, Shibata, A, Okamoto, N, Shio, H, Ohno, Y, Kitagawa, T, Kuroki, T & Tajima, K 2005, 'Green tea and stomach cancer - A short review of prospective studies', Journal of epidemiology, vol. 15, no. SUPPL. 2, pp. S109-S112. https://doi.org/10.2188/jea.15.S109

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

In: Journal of epidemiology, Vol. 15, No. SUPPL. 2, 2005, p. S109-S112.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Green tea and stomach cancer - A short review of prospective studies

AU - Hoshiyama, Yoshiharu

AU - Kawaguchi, Takeshi

AU - Miura, Yoshihiko

AU - Mizoue, Tetsuya

AU - Tokui, Noritaka

AU - Yatsuya, Hiroshi

AU - Sakata, Kiyomi

AU - Kondo, Takaaki

AU - Kikuchi, Shogo

AU - Toyoshima, Hideaki

AU - Hayakawa, Norihiko

AU - Tamakoshi, Akiko

AU - Yoshimura, Takesumi

AU - Mori, Mitsuru

AU - Motohashi, Yutaka

AU - Tsuji, Ichiro

AU - Nakamura, Yosikazu

AU - Iso, Hiroyasu

AU - Mikami, Haruo

AU - Inaba, Yutaka

AU - Hoshiyama, Yoshiharu

AU - Suzuki, Hiroshi

AU - Shimizu, Hiruyuki

AU - Wakai, Kenji

AU - Tokudome, Shinkan

AU - Ito, Yoshinori

AU - Hashimoto, Shuji

AU - Kikuchi, Shogo

AU - Koizumi, Akio

AU - Kawamura, Takashi

AU - Watanabe, Yoshiyuki

AU - Miki, Tsuneharu

AU - Date, Chigusa

AU - Nose, Takayuki

AU - Shibata, Akira

AU - Okamoto, Naoyuki

AU - Shio, Hideo

AU - Ohno, Yoshiyuki

AU - Kitagawa, Tomoyuki

AU - Kuroki, Toshio

AU - Tajima, Kazuo

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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DO - 10.2188/jea.15.S109

M3 - Article

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AN - SCOPUS:26244442877

VL - 15

SP - S109-S112

JO - Journal of Epidemiology

JF - Journal of Epidemiology

SN - 0917-5040

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