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| BPER | Breast Cancer | Normal | OR (95% CI) | P |
|---|---|---|---|---|
| Premenopausal (N=47) | 0.001 | |||
| <40.3% | 16 (34) | 32 (68) | 1.0 | |
| ≥40.3% | 31 (66) | 15 (32) | 4.1 (1.7-9.7) | |
| Postmenopausal (N=54) | 0.001 | |||
| <10.05% | 7 (13) | 22 (41) | 1.0 | |
| ≥10.05% | 47 (87) | 32 (59) | 4.6 (1.7-12.0) |
BPER, background parenchymal enhancement rate; CI, confidence interval; OR, odds ratio
