Table 5.
Explanatory variable | Standardized β-estimates (SE) | |||
---|---|---|---|---|
%-G | GV | FV | TV | |
BMI | −0.62 (0.02)∗∗∗ | 0.03 (0.03) | 0.79 (0.02)∗∗∗ | 0.71 (0.02)∗∗∗ |
Age | −0.03 (0.2) | −0.01 (0.02) | −0.02 (0.02) | −0.02 (0.02) |
Age at menarche | 0.03 (0.2) | 0.03 (0.02) | 0.01 (0.02) | 0.02 (0.02) |
Pregnancy, completed | ||||
Zero | Reference | |||
One | −0.08 (0.08) | −0.002 (0.1) | 0.18 (0.07)∗ | 0.16 (0.07)∗ |
Two | −0.24 (0.07)∗∗ | −0.37 (0.08)∗∗∗ | 0.005 (0.06) | −0.14 (0.06)∗ |
Three and more | −0.41 (0.07)∗∗∗ | −0.69 (0.08)∗∗∗ | −0.12 (0.06)∗ | −0.35 (0.06)∗∗∗ |
Measurement methoda,b | ||||
HSM | Reference | |||
GE | −0.003 (0.06) | −0.01 (0.07) | 0.002 (0.05) | 0 (0.05) |
MATH | 0.01 (0.06) | 0.01 (0.07) | 0.001 (0.05) | 0 (0.05) |
3DGRE | 0.002 (0.06) | −0.003 (0.07) | 0.003 (0.05) | 0 (0.06) |
STIR | 0.03 (0.06) | 0.01 (0.08) | −0.02 (0.05) | −0.02 (0.06) |
Race and ethnicity | ||||
Non-Hispanic White race | Reference | |||
Hispanic race | 0.16 (0.05)∗∗ | 0.33 (0.06)∗∗∗ | −0.12 (0.04)∗∗ | 0.01 (0.04) |
African-American race | 0.47 (0.06)∗∗∗ | 0.39 (0.08)∗∗∗ | −0.22 (0.05)∗∗∗ | −0.05 (0.06) |
Model R 2 | 0.38 | 0.09 | 0.58 | 0.51 |
aHSM, histogram segmentation method; FFDM, full field digital mammography unit; MATH, mathematical algorithm; 3DGRE, 3D gradient echo; STIR, short tau inversion recovery.
bInteraction terms between predictors and measurement methods were all not significant (results not shown).
***P < 0.001, **P < 0.01, and *P < 0.05.