Table 1. Summary of patient characteristics, tumor characteristics, mammographic density, and neo-adjuvant chemotherapy.
| Patient characteristics | N (%) |
|---|---|
| Year of diagnosis | |
| 2012 | 681 (45.0) |
| 2014 | 625 (41.0) |
| 2015 | 209 (14.0) |
| Sex | |
| Female | 1,505 (99.0) |
| Race | |
| Caucasian | 1,266 (84.0) |
| African American | 191 (13.0) |
| Native American | 1 (0.0) |
| Asian | 25 (2.0) |
| Hispanic | 6 (0) |
| Other | 26 (2.0) |
| Pathogenic genetic mutation | 35 (2.0) |
| Tumor type | |
| IDC | 932 (61.0) |
| ILC | 151 (10.0) |
| DCIS | 254 (17.0) |
| Mixed | 153 (10.0) |
| Other | 25 (2.0) |
| Stage | |
| 0 | 225 (17.0) |
| 1 | 636 (42.0) |
| 2 | 425 (28.0) |
| 3 | 148 (10.0) |
| 4 | 32 (2.0) |
| Mammographic density | |
| BIRADS 1–2 | 758 (53.0) |
| BIRADS 3–4 | 679 (47.0) |
| Neo-adjuvant chemotherapy | 260 (17.0) |
| Pre-operative MR | 1,059 (70.0) |
IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; DCIS, ductal carcinoma in situ.