From: Her2 positivity and race predict higher mastectomy rates: a SEER database analysis
 | Lumpectomy N (%) | Mastectomy N (%) | p |
---|---|---|---|
Age | |||
 15–49 | 11,532 (17) | 13,011 (29) | <0.0001 |
 50–85+ | 56,607 (83) | 31,813 (71) |  |
Race | |||
 White | 55,666 (82) | 35,341 (79) | <0.0001 |
 Black | 6865 (10) | 4,683 (10) |  |
 Other | 5,608 (8) | 4,800 (11) |  |
Tumor size | |||
 T1 | 51,079 (75) | 24,200 (54) | <0.0001 |
 T2 | 17,060 (25) | 20,624 (46) |  |
Biologic subtype | |||
 HR+/Her2+ | 5,775 (8) | 5,294 (12) | <0.0001 |
 HR−/Her2+ | 2,008 (3) | 2,500 (6) |  |
 HR+/Her2- | 53,214 (78) | 31,604 (70) |  |
 Triple negative | 7,142 (10) | 5,426 (12) |  |