Hoshiyama 2002

Methods	Case‐control study within a cohort study in Japan
Participants	72,851 cohort participants 359 cases, sub‐cohort control
Interventions	N/A
Outcomes	Mortality, cancer specific Adjusted for age
Cancer type & time of follow‐up	Gastric cancer (8 years mean follow‐up)
Sponsor	Ministry of Education, Science, Sports and Culture of Japan
Notes	Alle + Männer + Frauen Men: 1 or 2 cups/day: RR = 1.6 (95% CI 0.9 to 2.9) 3 or 4 cups/day: RR = 1.1 (95% CI 0.6 to 1.9) 5 to 9 cups/day: RR = 1.0 (95% CI 0.5 to 2.5) 10 or more cups/day: RR = 0.8 (95% CI 0.4 to 1.6) p = 0.669 Women: 1 or 2 cups/day: RR = 1.1 (95% CI 0.5 to 2.5) 3 or 4 cups/day: RR = 1.0 (95% CI 0.5 to 2.5) 5 to 9 cups/day: RR = 0.8 (95% CI 0.4 to 1.6) 10 or more cups/day: RR = 0.8 (95% CI 0.3 to 2.1) p = 0.488