Table 2 Baseline demographic and tumor-related characteristics
From: Serum erythropoietin levels, breast cancer and breast cancer-initiating cells
Age | Median (range) | 60 (29–86) |
Race | Â | No, % |
| Â | African American | 6 (6) |
| Â | Asian | 13 (13) |
| Â | Indian | 2 (2) |
| Â | White | 63 (64) |
| Â | Other/unknown | 5 (5) |
BMI | kg/m 2 , mean (SD) | Â |
| Â | 27.5 (6.0) | Â |
Height | cm, mean (SD) | Â |
| Â | 162.5 (7.6) | Â |
Weight | kg, mean (SD) | Â |
| Â | 72.9 (19.9) | Â |
ECOG PS | Â | No (%) |
| Â | 0 | 85 (86) |
| Â | 1 | 6 (6) |
| Â | 2 | 5 (5) |
| Â | Unknown | 3 (3) |
Postmenopausal status | Â | No (%) |
| Â | Yes | 69 (70) |
Stage | Stage | No (%) |
| Â | 0 | 19 (19) |
| Â | I | 28 (27) |
| Â | II | 41 (41) |
| Â | III | 11 (11) |
Neoadj ChT | Yes | 20 (20) |
Surgery | Type | No |
| Â | Breast conserving | 77 |
| Â | Mastectomy | 11 |
| Â | Bilat. mastectomy | 11 |
Receptor status | Â | No (%) |
ER | Positive | 77 (78) |
| Â | Negative | 22 (22) |
PR | Positive | 66 (67) |
| Â | Negative | 33 (33) |
Her2 | Positive | 14 (14) |
| Â | Negative | 70 (71) |
| Â | Unknown | 15 (15) |
Hemoglobin, g/dl | ||
| Â | Mean (SD) | 12.3 (1.7) |
|  | Median (range) | 12.8 (8.9–15) |
| Â | Category | No (%) |
|  | < 9 | 2 (2.2) |
|  | 9 to < 10 | 9 (9.8) |
|  | ≥ 10 | 81 (88) |
Erythropoietin, IU/l | ||
| Â | Mean (SD) | 19.2 (9.6) |
|  | Median (range) | 16.8 (8.5–60.9) |