|
Percentage dense breast volumea
|
Absolute dense breast volumea
|
---|
|
% Diff
|
95% CI
|
Pvalue
|
R
2b
|
% Diff
|
95% CI
|
Pvalue
|
R
2
|
---|
Anthropometric measures
| | | | | | | | |
BMI (kg/m2)
|
-29.1
|
-48.2, -3.1
|
0.03
|
0.61
|
13.4
|
-19.1, 58.8
|
0.47
|
0.29
|
Waist circumference (cm)
|
-28.6
|
-49.4, -0.7
|
0.06
| |
-22.5
|
-47.9, 15.2
|
0.21
| |
DXA measures
| | | | | | | | |
Total fat (%)
|
-26.1
|
-34.1, -17.3
|
< 0.001
|
0.71
|
-2.4
|
-16.7, 14.3
|
0.76
|
0.30
|
A:G ratio
|
-37.2
|
-40.3, -34.0
|
< 0.001
| |
-18.5
|
-27.8, -7.9
|
0.001
| |
- Percentage difference in percentage and absolute dense breast volume with a one-standard-deviation difference in mutually adjusted anthropometric and dual-energy X-ray absorptiometry (DXA) measures. Results also are interpretable as the excess relative ratio. To convert to the relative ratio (RRatio), use the formula: RRatio = (%Diff + 100)/100. A:G, android:gynoid fat ratio; BMI, body mass index; CI, confidence interval. aEstimates from two linear mixed-effects models including clinic as a random effect and anthropometric and body composition variables, race, education (attended college), smoking status, duration of hormone use, parity, and BMI z-score at 8 to 10 years old as fixed effects. bProportion of variance explained by model.