Methods | Case‐control study, hospital‐based in Japan | |
Participants | 186 cases, 186 controls | |
Interventions | N/A | |
Outcomes | Association of green tea consumption with cancer risk Matched for age and sex Adjusted for age and gender |
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Cancer type & time of follow‐up | Gastric cancer | |
Sponsor | Grant‐in‐Aid for Cancer Research, MInistry of Health and Welfare, Japan | |
Notes | ≥ 4 cups green tea/day versus less: Stomach cancer: RR = 0.64 Colon cancer: RR = 0.97 Rectal cancer: RR = 0.91 no CIs and no p‐values provided |