Association of the Differences in Average Glandular Dose with Breast Cancer Risk

Table 2

Correlation between NAGD differences in CC-view FFDM images with confounding variables.

Variables	Correlation	value
Pearson product-moment correlation
Age	0.001	0.046
Age at menarche	-0.0002	0.516
Age at first birth	0.0003	0.298
Spearman rank correlation^†
BI-RADS density	-0.023	0.248
Menopausal status	0.066	0.001
Parity	0.011	0.592
Family history of breast cancer	-0.020	0.315

^†The risk factors were treated as bicategorical variables in the analysis.