Table 4. ORs for the comparison of cutoff points between cancer and benign groups.

BPER	Breast cancer	Benign lesions	OR (95% CI)	P
Pr-menopausal (N=47)				0.03
<51.4%	26(55)	36(77)	1.0
≥51.4%	21(45)	11(23)	2.6 (1.1, 6.4)
Postmenopausal (N=54)				0.011
<13.3%	16(30)	29(54)	1.0
≥13.3%	38(70)	25(46)	2.8 (1.2, 6.1)

BPER, background parenchymal enhancement rate; CI, confidence interval; OR, odds ratio