Clinical Study
Postmastectomy Radiotherapy for Locally Advanced Breast Cancer Receiving Neoadjuvant Chemotherapy
Table 3
Locoregional recurrence, distant metastases, and overall survival rates according to pathologic factors.
| Variable | Patient | Overall survival | LRR free survival | DM free survival | Deaths | value | LRR | value | DM | value |
| Multiple foci | | | | | | | | No | 99 | 40 | | 18 | | 46 | | Yes | 71 | 32 | 0.60 | 8 | 0.28 | 40 | 0.19 | Pathologic T | | | | | | | | pTx/pTis | 14 | 8 | | 3 | | 8 | | pT1 | 26 | 5 | | 0 | | 7 | | pT2 | 75 | 29 | | 8 | | 38 | | pT3 | 18 | 10 | | 5 | | 11 | | pT4 | 37 | 20 | 0.04 | 10 | 0.015 | 22 | 0.13 | Pathologic N | | | | | | | | pN0 | 20 | 3 | | 2 | | 3 | | pN1 | 63 | 27 | | 9 | | 28 | | pN2 | 52 | 26 | | 12 | | 33 | | pN3 | 35 | 16 | 0.026 | 3 | 0.12 | 22 | 0.0002 | Stage | | | | | | | | 0 | 3 | 2 | | 1 | | 2 | | I | 6 | 0 | | 0 | | 0 | | IIa | 25 | 7 | | 3 | | 7 | | IIb | 25 | 9 | | 4 | | 9 | | IIIa | 43 | 20 | | 6 | | 27 | | IIIb | 39 | 18 | | 8 | | 21 | | IIIc | 29 | 16 | 0.049 | 4 | 0.76 | 20 | 0.0006 | Histology | | | | | | | | Ductal invasive | 118 | 52 | | 19 | | 59 | | Lobular invasive | 36 | 13 | | 1 | | 19 | | Others | 16 | 7 | 0.85 | 6 | 0.008 | 8 | 0.94 | Pathologic skin involvement | | | | | | | | Absent | 136 | 56 | | 16 | | 67 | | Present | 34 | 16 | 0.78 | 10 | 0.018 | 19 | 0.83 | LVI | | | | | | | | Absent | 101 | 38 | | 14 | | 44 | | Present | 69 | 34 | 0.19 | 12 | 0.35 | 42 | 0.044 | Nuclear grading* | | | | | | | | G1 | 11 | 4 | | 0 | | 5 | | G2 | 54 | 17 | | 3 | | 25 | | G3 | 80 | 40 | 0.18 | 16 | 0.024 | 44 | 0.52 | Ki 67 index | | | | | | | | <20 | 117 | 48 | | 21 | | 57 | | ≥20 | 53 | 24 | 0.15 | 5 | 0.34 | 29 | 0.09 | ER status | | | | | | | | Negative | 64 | 35 | | 10 | | 37 | | Positive | 106 | 37 | 0.015 | 16 | 0.99 | 49 | 0.20 | PgR status | | | | | | | | Negative | 83 | 36 | | 13 | | 41 | | Positive | 87 | 36 | 0.83 | 13 | 0.87 | 45 | 0.83 | Extracapsular extension | | | | | | | | Absence | 115 | 37 | | 13 | | 48 | | Presence | 55 | 35 | 0.0007 | 13 | 0.035 | 38 | 0.003 |
| Total | 170 | 72 | | 26 | | 86 | |
|
|
Some data are missing. LRR: locoregional recurrence; DM: distant metastases; PMRT: postmastectomy radiotherapy; LVI: lymph vascular invasion; ER: estrogen receptors; PgR: progesterone receptors.
|