Clinicopathologic features of patients in the study
Characteristics | No. of patients | P | |
|---|---|---|---|
| PMRT | No-PMRT | ||
| Age, yrs | 0.841 | ||
| ≤50 | 208 | 72 | |
| >50 | 186 | 61 | |
| ER/PR | 0.052 | ||
| Negative | 54 | 28 | |
| Positive | 340 | 105 | |
| Postmenopausal | 0.133 | ||
| No | 201 | 78 | |
| Yes | 193 | 55 | |
| ECE | <0.001 | ||
| Negative | 324 | 87 | |
| Positive | 70 | 46 | |
| Histological grade | 0.21 | ||
| I-II | 364 | 118 | |
| III | 30 | 15 | |
| T stage | 0.299 | ||
| T1-T2 | 327 | 105 | |
| T3-T4 | 67 | 28 | |
| Endocrine therapy | 0.131 | ||
| No | 57 | 27 | |
| Yes | 337 | 106 | |
| ALN | <0.001 | ||
| 1 | 158 | 38 | |
| 2 | 129 | 25 | |
| 3 | 107 | 70 | |
ER, estrogen receptor; PR, progesterone; ER/PR, estrogen receptor and progesterone receptor; ECE, extracapsular extension; ALN, axillary lymph nodes; PMRT, postmastectomy radiotherapy.