- Kyoko Yamasaki: Tokai University, Isehara, Japan kyoko-y@tokai-u.jp.
- Kazunori Kayaba: Saitama Prefectural University, Saitama, Japan.
- Shizukiyo Ishikawa: Jichi Medical University, Shimotsuke, Japan.
soy and soy Products are popular ingredients in the Japanese diet. This study aimed to determine whether soy or soy Products intake was associated with all-cause mortality in a community-based cohort in Japan. A total of 11 066 participants were obtained from an annual community-based health examination program. A self-administered questionnaire was used to collect information concerning soy and soy Products intake and potential confounding factors. Associations between soy and soy Products intake and all-cause mortality were assessed using hazard ratios (HRs). After adjusting for all factors, morality was significantly higher in men with infrequent soy intake (HR = 1.53; 95% confidence interval [CI] = 1.13-2.07) and with almost daily intake (HR = 1.55; 95% CI = 1.19-2.03) compared with intake 1 to 2 times per week. Cancer mortality was higher among men who reported rarely eating soy (HR = 1.74; 95% CI = 1.08-2.79). soy Products intake was not statistically significantly associated with all-cause mortality in both sexes.