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Table 5 Percentage and absolute dense breast volume differences with difference in mutually adjusted anthropometric and body composition measures

From: Height, adiposity and body fat distribution and breast density in young women

  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  
  1. 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.