Table 3.
Differences in mammographic density measures across categories of BMI
| Percent density1,2 | Dense area3 | Lucent area4 | ||
|---|---|---|---|---|
| BMI (kg/m2) (n = 487) | <22 | 0 | 0 | 0 |
| 22-24.9 | -10.6 (-14.0,-6.9) | -6.0 (-10.8,-0.8) | 36.2 (24.7,48.2) | |
| 25-27.9 | -17.3 (-20.1,-14.1) | -10.9 (-15.5,-5.9) | 66.4 (52.8,80.6) | |
| ≥ 28 | -24.6 (-26.4,-22.5) | -19.4 (-23.1,-15.3) | 131.6 (115.3,148.4) | |
| P-value for linear trend | Pt < 0.001 | Pt < 0.001 | Pt < 0.001 |
1 Linear regression models adjusted for age at mammography and mammographic view
2 For a reference value of 30%
3 For a reference value of 35 cm2
4 For a reference value of 90 cm2