Huang 1999

Methods	Case‐control study, Hospital‐based in Japan
Participants	850 cases, 28,619 controls
Interventions	N/A
Outcomes	Association of green tea consumption with cancer risk Not matched but first visit outpatient without cancer served as controls Adjusted for age and gender
Cancer type & time of follow‐up	Gastric cancer
Sponsor	Grant‐in‐Aid for Cancer Research, Ministry of Health and Welfare in Japan
Notes	> 6 cups/day vs never OR = 0.9 (95% CI 0.73 to 1.11) 3 to 5 cups/day vs never OR = 1.08 (0.90 to 1.24) 1 to 2 cups/day vs never OR = 0.88 (0.73 to 1.05) No p‐values provided