Table 7.

Adjusted odds of high mammographic density (top tertile, percent density >42.5%) and adjusted mean percent density (%) in groups defined by equol status and weekly intake of soy foods

Equol nonproducers
Equol producers
nMean PD (SE)OR (95% CI)nMean PD (SE)OR (95% CI)
<1 soy food or supplement weekly12631.8 (1.3)1.00 (reference)6337.1 (1.9)1.99 (0.98-4.06)
>1 soy food or supplement weekly3138.0 (2.7)1.24 (0.49-3.15)1228.2 (4.3)0.14 (0.02-1.01)
  • NOTE: Logistic model was adjusted for age, BMI, parity, age at first birth, and ever use of combined hormone therapy; Pinteraction = 0.05. General linear model was adjusted for age, BMI, parity, age at first birth, and ever use of combined hormone therapy; Pinteraction < 0.01.

    Abbreviations: PD, percent density; OR, odds ratio; 95% CI, 95% confidence interval.