Kuriyama 2006

Methods	Prospective cohort study in Japan
Participants	40,530 cohort participants 1,134 cases (deaths), sub‐cohort control
Interventions	N/A
Outcomes	Mortality, cancer specific Adjusted for age at baseline, job status, years of education, BMI, engaging in sports or exercise, time spent walking, history of: hypertension, diabetes mellitus, gastric ulcer, smoking, alcohol, daily total energy intake, daily rice consumption bowls, or 5 bowls, daily consumption of miso soup, daily consumption of soybean products, total meat, total fish, dairy products, total fruits, and total vegetables and consumption of oolong tea, black tea, or coffee
Cancer type & time of follow‐up	Various cancer types (gastric, lung, colorectal; 11 years follow‐up)
Sponsor	Health Sciences Research Grant for Health Services, Ministry of Health, Labour, and Welfare, Japan
Notes	HRs of cancer mortality were not significant different from 1.00 in all green tea consumption categories compared with the lowest‐consumption (referent) category. Green tea consumption was inversely related with mortality due to all causes (including cancer). Inverse association was stronger in women. Green tea consumption was associated with reduced mortality due to all causes and due to cardiovascular disease but not with reduced mortality due to cancer Green tea consumption (cups per day) a) <1 (=reference category) b) 1 or 2 c) 3 or 4 d) ≥5 All cancer mortality Green tea consumption (cups per day) a) <1: 65.656 person years, n. of deaths: n = 256 b) 1 or 2: 54.443 person years, n. of deaths: n = 229 c) 3 or 4: 55.290 person years, n. of deaths: n = 265 d) ≥5: 76.712 person years, n. of deaths: n = 384 All cancer mortality b =1.12 (95% CI, 0.89 to 1.41) c = 1.17 (95% CI, 0.94 to 1.46) d = 1.11 (95% CI, 0.90 to 1.37) Gastric cancer mortality b = 1.33 (95% CI, 0.86 to 2.40) c = 1.00 (95% CI, 0.64 to 1.58) d = 1.17 (95% CI, 0.78 to 1.76) Lung cancer mortality b = 1.03 (95% CI, 0.67 to 1.58) c = 1.05 (95% CI, 0.69 to 1.59) d = 1.18 (95% CI, 0.81 to 1.72) Colorectal cancer mortality b = 1.04 (95% CI, 0.59 to 1.82) c = 1.45 (95% CI, 0.87 to 2.41) d = 1.10 (95% CI, 0.67 to 1.82)