Table 6.

Crude and adjusted mean differences in mammographic density (%) by soy intake and by equol status in selected strata

<1 soy food or supplement/wk
≥1 soy foods or supplement/wk
Mean difference (SE)P
nMean (SE)nMean (SE)
Equol nonproducers
    Crude model12629.9 (1.6)3140.7 (3.1)−10.8 (3.5)<0.01
    Adjusted model*12630.7 (1.3)3137.5 (2.8)−6.7 (3.1)0.03
Equol producers
    Crude model6339.5 (2.1)1227.5 (4.8)12.0 (5.2)0.03
    Adjusted model*6338.9 (1.8)1230.7 (4.3)8.2 (4.7)0.08
Equol nonproducers
Equol producers
Mean difference (SE)P

n
Mean (SE)
n
Mean (SE)
<1 soy food or supplement/wk
    Crude model12630.1 (1.6)6339.5 (2.2)−9.4 (2.7)<0.01
    Adjusted model*12631.4 (1.4)6336.9 (2.0)−5.5 (2.5)0.03
≥1 soy food or supplement/wk
    Crude model3140.7 (2.7)1227.5 (4.3)13.2 (5.1)0.01
    Adjusted model*3140.3 (2.0)1228.8 (3.4)11.5 (4.1)<0.01
  • * Adjusted for age, BMI, parity, age at first birth, and ever use of combination hormone (estrogen + progesterone) therapy.