Table 4.
AUCs of the unconditional logistic regression analyses for testing the BPE measures computed from three different SUBs on distinguishing cancer cases from controls.
| SUB1 | SUB2 | SUB3 | SUBs 1, 2, and 3 combined | *P-values | |
|---|---|---|---|---|---|
| Comparison A: Contralateral breasts of both cancer cases and controls | |||||
| |BPE| | 0.612 | 0.615 | 0.609 | 0.612 | all p > 0.59 |
| BPE% | 0.639 | 0.654 | 0.629 | 0.657 | all p > 0.36 |
| |BPE| + BPE% | 0.652 | 0.665 | 0.663 | 0.673 | all p > 0.41 |
| +P-values | all p > 0.29 | all p > 0.22 | all p > 0.016 | all p > 0.12 | |
| Comparison B: Benign breast of controls vs contralateral breasts of cancer cases | |||||
| |BPE| | 0.595 | 0.606 | 0.595 | 0.611 | all p > 0.20 |
| BPE% | 0.614 | 0.653 | 0.624 | 0.654 | all p > 0.25 |
| |BPE| + BPE% | 0.649 | 0.669 | 0.667 | 0.680 | all p > 0.32 |
| +P-values | all p > 0.061 | all p > 0.12 | all p > 0.0047 | all p > 0.11 | |
|BPE| = Volume of background parenchymal enhancement.
BPE% = Percentage of background parenchymal enhancement volume (|BPE|) relative to breast volume.
SUB1, SUB2, SUB3 = Subtraction sequence (i.e., post-contrast – pre-contrast) for each of first, second, and third post-contrast sequences, respectively.
*P-values represent the DeLong’s test between any pair of the AUCs with respect to SUB1, SUB2, SUB3, and their combination (i.e., columns 2–5).
+P-values represent the DeLong’s test between any pair of the AUCs with respect to |BPE|, BPE%, and their combination (i.e., rows 3–5 for Comparison A and rows 8–10 for Comparison B).