Table 1 Patient Characteristics at Baseline (N = 433)
Characteristics | No. | Percentage (%) |
|---|---|---|
Age, years | ||
 Median (Range) | 48 (23–78) | |
  ≤ 40 | 97 | 22.2 |
  > 40 | 336 | 77.8 |
Menopausal status | ||
 Pre- or perimenopause | 286 | 66.0 |
 Postmenopause | 138 | 31.9 |
 Unknown | 9 | 2.1 |
Histological subtype | ||
 Invasive ductal | 419 | 96.8 |
 Lobular | 6 | 1.4 |
 Metaplastic | 6 | 1.4 |
 Medullary | 2 | 0.5 |
Grade | ||
 I-II | 100 | 23.1 |
 III | 333 | 76.9 |
DFI | ||
  ≤ 1 year | 114 | 26.3 |
  > 1 year | 267 | 61.7 |
 IV | 52 | 12.0 |
Prior neo/adjuvant chemotherapy | ||
 Anthracycline-containing regimen | 323 | 84.8 |
 Anthracycline and Taxanes regimen | 268 | 70.3 |
 Cyclophosphamide | 340 | 89.2 |
Initial site of mTNBC | ||
 Lymph nodes | 247 | 57 |
 Liver | 101 | 23.3 |
 Lung | 183 | 42.3 |
 Bone | 105 | 24.3 |
 Pleural effusion | 52 | 12 |
 Local recurrence | 105 | 24.2 |
 Brain | 32 | 7.4 |
 Contralateral breast | 2 | 0.5 |
Visceral metastasis | ||
 Yes | 252 | 58.2 |
 No | 181 | 41.8 |
Number of metastatic organ sites | ||
  ≥ 3 | 37 | 8.5 |
  < 3 | 396 | 91.5 |