Table 1.
Demographic and clinical characteristics of 1370 WHEL Study participants
| Demographic or Clinical Characteristic | No. of Participants (N = 1370) | % |
|---|---|---|
| Age at baseline, years | ||
| <50 | 577 | 42 |
| 50–59 | 519 | 38 |
| 60 and older | 274 | 20 |
| Race/ethnicity | ||
| White, Non-Hispanic | 1191 | 87 |
| Hispanic | 68 | 5 |
| Asian/Pacific Islander | 57 | 4 |
| Black/African American | 31 | 2 |
| Other | 23 | 2 |
| Breast cancer treatments | ||
| Mastectomy | 707 | 52 |
| Received radiation | 867 | 63 |
| Received chemotherapy | 846 | 62 |
| Stage | ||
| I | 512 | 37 |
| IIA | 451 | 33 |
| IIB | 175 | 13 |
| IIIA | 180 | 13 |
| IIIC | 52 | 4 |
| Tumor Grade | ||
| Well differentiated | 283 | 21 |
| Moderately differentiated | 651 | 48 |
| Poorly differentiated | 307 | 22 |
| Not reported | 129 | 9 |
| Outcomes | ||
| No breast event | 1192 | 87 |
| Breast cancer recurrence | 160 | 12 |
| New primary breast cancer | 18 | 1 |
| Time from Diagnosis to study entry (months) | ||
| 1–12 | 229 | 17 |
| 13–24 | 485 | 35 |
| 25–36 | 373 | 27 |
| 37–48 | 283 | 21 |