Differences in breast cancer risk between the 75th and the 25th percentile of urinary phytoestrogen excretion, by race-ethnic group, Multiethnic Cohort Study. Differences in breast cancer risk between the 75th and the 25th percentile of urinary phytoestrogen excretion, by race-ethnic group, Multiethnic Cohort Study. Based on the logistic model for continuous log-transformed variables. ▪, the relative size of race-ethnic groups in the study. This figure was produced using a forest plot macro for SAS software, by Foster et al. (33). Marc T. Goodman et al. Cancer Prev Res 2009;2:887-894 ©2009 by American Association for Cancer Research