Table 1.
Clinicopathological parameters of 281 patients with triple-negative breast cancer
| Parameters | N=281 | % |
|---|---|---|
|
| ||
| Age (years) | ||
| ≤50 | 201 | 72 |
| >50 | 80 | 28 |
| Type of surgery | ||
| Breast-conserving surgery | 46 | 16 |
| Radical mastectomy | 235 | 84 |
| Tumor stage | ||
| pT1 | 59 | 21 |
| pT2 | 167 | 59 |
| pT3 | 50 | 18 |
| pT4 | 5 | 2 |
| Tumor histology | ||
| Invasive ductal carcinoma | 223 | 79 |
| Invasive lobular carcinoma | 55 | 20 |
| Others | 3 | 1 |
| Lymphovascular invasion | ||
| Yes | 39 | 14 |
| No | 242 | 86 |
| Histological grade | ||
| I–II | 181 | 64 |
| III | 100 | 36 |
| Ki-67 | ||
| ≥30% | 121 | 43 |
| <30% | 160 | 57 |
| Lymph node status | ||
| pN0 | 118 | 42 |
| pN1 | 96 | 34 |
| pN2 | 41 | 15 |
| pN3 | 26 | 9 |
| AJCC stage | ||
| I | 39 | 14 |
| II | 150 | 54 |
| III | 92 | 33 |
| Adjuvant radiotherapy | ||
| Yes | 180 | 64 |
| No | 101 | 36 |
| Chemotherapy | ||
| Neoadjuvant chemotherapy | 59 | 21 |
| Adjuvant chemotherapy | 222 | 79 |
| dNLR | ||
| ≥2.6 | 109 | 39 |
| <2.6 | 172 | 61 |
Abbreviations: AJCC, American Joint Committee on Cancer; dNLR, derived neutrophil-to-lymphocyte ratio.