Skip to main content

Table 3 Associations of percent density with overall breast cancer, by BMI and menopausal status for 1823 cases and 4720 controls

From: Body mass index, mammographic density, and breast cancer risk by estrogen receptor subtype

  Normal/underweight
BMI < 25 kg/m2
Overweight/obese
BMI ≥ 25 kg/m2
 
  Cases Controls Percent density
OR per S.D. (95% CI)a
Cases Controls Percent density
OR per S.D. (95% CI)a
P int b
Premenopausal 383 979 1.83 (1.54–2.18) 227 528 1.46 (1.22–1.74) 0.07
Postmenopausal HT user 281 678 1.64 (1.38–1.95) 198 446 1.61 (1.32–1.95) 0.84
Postmenopausal HT non-user 279 1029 1.46 (1.24–1.70) 455 1060 1.48 (1.30–1.69) 0.94
  1. Abbreviations: BMI body mass index, CI confidence interval, ER estrogen receptor, HT hormone therapy, OR odds ratio, S.D. standard deviation
  2. aOdds ratios estimated from polytomous multivariable logistic regression models adjusted for age, study. Standard deviation of square root-transformed percent density = 2.0
  3. bP value of test for BMI-percent density interaction