Table 1.
Patient and tumor characteristics of the breast cancers used for expression profiling at this institution and on the basal-like tumors accrued by Hess et al. [4]
| This institution, All
|
This institution, Basal-like
|
Hess et al., Basal-like
|
||||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| Female | 70 | 24 | 26 | |||
| Age (years) | ||||||
| Median | 48 | 48 | 50 | |||
| Range | 29–69 | 34–62 | 29–71 | |||
| Race | ||||||
| Caucasian | 48 | 68 | 14 | 58 | 19 | 73 |
| African American | 20 | 29 | 10 | 42 | 2 | 8 |
| Others | 2 | 3 | 5 | 19 | ||
| Histology | ||||||
| Ductal | 64 | 91 | 24 | 100 | 21 | 81 |
| Lobular | 1 | 2 | 0 | 0 | 0 | 0 |
| Mucinous | 5 | 7 | 0 | 0 | 0 | 0 |
| Others | 5 | 9 | ||||
| Size | ||||||
| T2 | 56 | 80 | 20 | 83 | 11 | 42 |
| T3 | 10 | 14 | 3 | 12 | 4 | 15 |
| Grade | ||||||
| 1 | 3 | 4 | 0 | 0 | 0 | 0 |
| 2 | 22 | 32 | 2 | 8 | 1 | 4 |
| 3 | 45 | 64 | 22 | 92 | 25 | 96 |
| Nodal status | ||||||
| N0 | 23 | 33 | 15 | 63 | 6 | 23 |
| N1 | 26 | 37 | 6 | 25 | 15 | 58 |
| N2 | 17 | 25 | 1 | 4 | 3 | 11 |
| N3 | 3 | 4 | 2 | 8 | 2 | 8 |
| Unknown | 1 | 1 | ||||
| ER | ||||||
| Positive | 34 | 49 | 1 | 4 | 1 | 4 |
| Negative | 36 | 51 | 23 | 96 | 25 | 96 |
| PR | ||||||
| Positive | 25 | 36 | 0 | 0 | 5 | 19 |
| Negative | 45 | 64 | 24 | 100 | 21 | 81 |
| HER-2 | ||||||
| Positive | 34 | 49 | 1 | 4 | 1 | 4 |
| Negative | 36 | 51 | 23 | 96 | 25 | 96 |