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. Author manuscript; available in PMC: 2013 Nov 25.
Published in final edited form as: J Clin Oncol. 2007 Jan 29;25(9):10.1200/JCO.2006.07.3965. doi: 10.1200/JCO.2006.07.3965

Table II.

Adjusted1 mammographic density measures by BMI in kg/m2 (N = 439).

BMI < 25
Mean ± SE
(n = 171)		 BMI: 25 - 29.9
Mean ± SE
(n =137)		 BMI ≥ 30
Mean ± SE
(n = 131)		 P for trend
Total Breast Area (mm2) 21,140 ± 778 27,752 ± 864a 31,923 ± 925 bc 0.0001
Non-dense (fatty) area (mm2) 17,030 ± 739 23,989 ± 820a 28,521 ±879bc 0.0001
Dense Area (mm2) 4,110 ± 277 3,763 ± 308 3,401 ± 330 0.11
% Dense Tissue 30.0% ±1.1 20.4% ± 1.2%a 14.5% ±1.3% bc 0.0001
1

Adjusted for age, race/ethnicity, education, parity, disease stage, adjuvant therapy, tamoxifen use, breast cancer recurrence, smoking, physical activity, ever use of hormone replacement therapy, and time from diagnosis to mammogram.

a

Significant difference between BMI < 25 vs. BMI: 25-29.9, p < .05.

b

Significant difference between BMI < 25 vs. BMI ≥30, p < .05.

c

Significant difference between BMI: 25-29.9 vs. BMI ≥30, p < .05.