Table 5.

Regression-estimated Mean Enhancement at Contrast-enhanced Breast CT for Lesion Subgroups

Note.—Unless otherwise indicated, data in parentheses are numbers of lesions. P values represent the significance of the difference in mixed-effects linear regression–estimated mean enhancement for the compared lesion subgroups and have been adjusted for interradiologist variation, within-subject clustering, and breast density.

^*Mass versus calcification.

^†Benign versus malignant.

^‡Interaction of the malignancy and lesion type (mass or calcification) factors.