09.01.03
Indication: Breast cancer
Source: J Natl Can Inst, June 2003; 95(12):906-913.
Research: In January 1990, 21,852 Japanese female residents (aged 40-59 years) from four public health center areas completed a self-administered questionnaire, which included items about the frequency of soy consumption. Through December 1999 and 209,354 person-years of follow-up, 179 women were diagnosed with breast cancer. Cox proportional hazards regression was used to estimate the relative risks (RRs) and 95% confidence intervals (CIs) for breast cancer in relation to consumption of miso soup, soyfoods and estimated isoflavones. All statistical tests were two-sided.
Results: Consumption of miso soup and isoflavones, but not of soyfoods, was inversely associated with the risk of breast cancer. The associations did not change substantially after adjustment for potential confounders, including reproductive history, family history, smoking and other dietary factors. The inverse association was stronger in postmenopausal women.
Source: J Natl Can Inst, June 2003; 95(12):906-913.
Research: In January 1990, 21,852 Japanese female residents (aged 40-59 years) from four public health center areas completed a self-administered questionnaire, which included items about the frequency of soy consumption. Through December 1999 and 209,354 person-years of follow-up, 179 women were diagnosed with breast cancer. Cox proportional hazards regression was used to estimate the relative risks (RRs) and 95% confidence intervals (CIs) for breast cancer in relation to consumption of miso soup, soyfoods and estimated isoflavones. All statistical tests were two-sided.
Results: Consumption of miso soup and isoflavones, but not of soyfoods, was inversely associated with the risk of breast cancer. The associations did not change substantially after adjustment for potential confounders, including reproductive history, family history, smoking and other dietary factors. The inverse association was stronger in postmenopausal women.