“Adjusting for age and …, urinary daidzein, genistein, glycitein , and serum daidzein and … negatively correlated with plasma estradiol (R = -0.199 to -0.277, P <0.03), with particularly strong associations found in the … with CC genotype for ESR1 PvuII polymorphism (R = -0.597 to -0.834, P < 0.03).”