Table 2.
Characteristics of 1,545 breast cancer samples (Curtis dataset)
| Characteristics | n |
|---|---|
| Tumor size (cm) | |
| ≤2 | 505 |
| 2–4 | 815 |
| ≥4 | 216 |
| No information | 9 |
| Grade | |
| 1 | 128 |
| 2 | 607 |
| 3 | 770 |
| No information | 40 |
| Number of positive lymph nodes | |
| 0 | 779 |
| 1–3 | 508 |
| ≥4 | 254 |
| No information | 4 |
| Age (years) | |
| 20–29 | 12 |
| 30–39 | 96 |
| 40–49 | 281 |
| 50–59 | 393 |
| 60–69 | 438 |
| 70–79 | 267 |
| ≥80 | 58 |
| PAM50 subtype | |
| Normal | 159 |
| Lum A | 532 |
| Lum B | 380 |
| HER2 | 190 |
| Basal | 280 |
| No information | 4 |
| Treatment | |
| None | 189 |
| Chemotherapy | 40 |
| Radiotherapy | 184 |
| Hormone therapy | 309 |
| Chemotherapy + radiotherapy | 163 |
| Chemotherapy + hormone therapy | 28 |
| Hormone therapy + radiotherapy | 481 |
| Chemotherapy + hormone therapy + radiotherapy | 151 |
Abbreviations: HER2, receptor tyrosine-protein kinase erbB-2; Lum, luminal.