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 | |
| Publication status | Published - 14-10-2005 |
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All Science Journal Classification (ASJC) codes
- Epidemiology
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}
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, 14.10.2005, p. S109-S112.Research output: Contribution to journal › Article
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 - 2005/10/14
Y1 - 2005/10/14
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.
UR - http://www.scopus.com/inward/record.url?scp=26244442877&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=26244442877&partnerID=8YFLogxK
U2 - 10.2188/jea.15.S109
DO - 10.2188/jea.15.S109
M3 - Article
C2 - 16127221
AN - SCOPUS:26244442877
VL - 15
SP - S109-S112
JO - Journal of Epidemiology
JF - Journal of Epidemiology
SN - 0917-5040
IS - SUPPL. 2
ER -