Table 2.

Mean (95% confidence interval) dense area, nondense area, and percent breast density by equol-producing status in a sample of Chinese immigrant women (n = 221)

Nonproducer (n = 147)Producer (n = 74)P
Dense area (cm2)
 Minimally adjusteda38.0 (31.1–44.9)33.8 (26.8–40.8)0.047
 Fully adjustedb37.7 (30.4–44.9)32.8 (25.6–40.1)0.03
Nondense area (cm2)
 Minimally adjusted63.0 (51.2–74.9)60.2 (48.2–72.2)0.44
 Fully adjusted65.2 (54.9–75.5)61.9 (51.7–72.2)0.29
Percent density
 Minimally adjusted36.6 (31.0–42.2)33.3 (27.7–39.0)0.06
 Fully adjusted35.3 (29.9–40.7)31.8 (26.4–37.2)0.03
  • aLinear regression models adjusted for age (y) and image modality (digital or film).

  • bLinear regression models adjusted for age (y), image modality (digital or film), education (≤8 y, 9–12 y, at least some college), total duration of breastfeeding (none, ≤1 y, >1–2 y, >2 y), BMI (kg/m2), waist circumference (cm), and a combined variable representing number of live births (0–1, 2, 3+) and age at first live birth (<25 or ≥25 y).