Table 1.
Patients’ on-study characteristics (N = 249)
| Ethnicity | N | % |
|---|---|---|
| Caucasian | 110 | 44.2 |
| African American | 123 | 49.4 |
| American Indian | 3 | 1.2 |
| Hispanic | 3 | 1.2 |
| Asian | 5 | 2.0 |
| Other | 5 | 2.0 |
| Age at diagnosis, years | ||
| Median | 46 | |
| Range | 25–64 | |
| Gender | ||
| Female | 249 | 100.0 |
| Surgery | ||
| Lumpectomy | 137 | 55.0 |
| Mastectomy | 109 | 43.4 |
| Unknown | 4 | 1.6 |
| Chemotherapy | ||
| Yes | 135 | 54.2 |
| No | 97 | 39.0 |
| Unknown | 17 | 6.8 |
| Radiation | ||
| Yes | 157 | 63.1 |
| No | 78 | 31.3 |
| Unknown | 14 | 5.6 |
| Hormone therapy | ||
| Yes | 152 | 61.0 |
| No | 74 | 29.7 |
| Unknown | 23 | 9.2 |
| Stage | ||
| 0 | 50 | 20.1 |
| 1 | 84 | 33.7 |
| 2 | 69 | 27.7 |
| 3 | 39 | 15.7 |
| Unknown | 7 | 2.8 |
| ER | ||
| ER− | 45 | 18.1 |
| ER+ | 144 | 57.8 |
| Unknown | 60 | 24.1 |
| PR | ||
| PR− | 60 | 24.1 |
| PR+ | 119 | 47.8 |
| Unknown | 70 | 28.1 |
| HER2 | ||
| HER2- | 103 | 41.4 |
| HER2+ | 27 | 10.8 |
| Unknown | 119 | 47.8 |