Serum Isoflavone level (ng/ml) Mean/Median CA (n=68) JA (n=65) p value* Total Mean ± SD 76.340±104.855 135.093±245.597 0.07 isoflavone Median 41.03 (14.62-717.3) 56.895 (10.0-1658.6) Daidzein Mean ± SD 13.949±34.744 33.297±84.031 0.08 Median 0 (0-179.99) 4.19 (0-600.19) Genistein Mean±SD 21.416±54.021 61.770±150.878 0.042** Median 4.9 (0-339.42) 13.29 (0-931.69) Glycitein Mean±SD 35.736±10.410 30.674±15.502 0.029** Median 34.69 (14.62-63.23) 29.85 (0-82.74) DHD Mean±SD 1.747±5.935 1.431±6.151 0.76 Median 0 (0-34.15) 0 (0-43.93) Equol Mean±SD 3.493±19.240 5.906±26.813 0.55 Median 0 (0-145) 0 (0-180) o-DMA Mean±SD 0 2.013±7.949 0.040** Median 0 0 (0-37.58)

Table 3: Serum Isoflavone level, Caucasian vs. Japanese-American, *Wilcoxon’s test, **Statistically significant (p < 0.05).