Table 1.
Baseline Characteristics of Patients
| Parameters | Patients Characteristics, n(%) |
|---|---|
| n | 221 |
| Age at diagnosis(years) | |
| <35 | 21(9.5%) |
| ≥35 | 200(90.5%) |
| Tumor stage | |
| T1 | 49(22.1%) |
| T2 | 137(62.0%) |
| T3 | 24(10.9%) |
| T4 | 11(5.0%) |
| Lymph node status | |
| N0 | 59(26.7%) |
| N1 | 103(46.6%) |
| N2 | 28(12.7%) |
| N3 | 31(14.0%) |
| AJCC stage | |
| I | 18(8.1%) |
| II | 125(56.6%) |
| III | 78(35.3%) |
| Tumor grade | |
| G1 | 7(3.2%) |
| G2 | 169(76.5%) |
| G3 | 36(16.3%) |
| Unknown | 9(4.0%) |
| Molecular subtype | |
| Luminal A | 45(20.4%) |
| Luminal B | 104(47.1%) |
| Basal like | 41(18.5%) |
| Her2 | 31(14.0%) |
| Surgery | |
| BCS | 170(76.9%) |
| Mastectomy | 51(23.1%) |
| Chemotherapy | |
| NAC | 128(57.9%) |
| AC | 72(32.6%) |
| NAC+AC | 16(7.2%) |
| None | 5(2.3%) |
| Radiotherapy | |
| 50 Gy | 40(18.1%) |
| 60 Gy | 181(81.9%) |
Abbreviations: AJCC, American Joint Committee on Cancer; BCS, breast-conserving surgery; NAC, neoadjuvant chemotherapy; AC, adjuvant chemotherapy.