Table 1.
Clinical and pathological features of the TN and non-TN invasive breast carcinoma subgroups. Data for age and size are presented as mean (SD), data for other variables are presented as frequency (%).
| TN (n = 104) | Non-TN (n = 439) | P value | |
|---|---|---|---|
| Age (yrs) | 52.2 (11.9) | 52.8 (10.9) | 0.641 |
| Size (cm) | 2.2 (0.9) | 2.2 (0.9) | 0.723 |
| Side | 0.853 | ||
| Left | 57 (54.8) | 245 (55.8) | |
| Right | 47 (45.2) | 194 (44.2) | |
| Surgical type | 0.31 | ||
| MRM | 42 (40.4) | 118 (26.9) | |
| M&SLNB | 29 (27.9) | 113 (25.7) | |
| M&ALND | 1 (1.0) | 20 (4.6) | |
| BCS&SLNB | 27 (26.0) | 89 (20.3) | |
| BCS&ALND | 5 (4.8) | 29 (6.6) | |
| Pathological type | 0.424 | ||
| Ductal carcinoma | 101 (97.1) | 421 (95.9) | |
| Lobular carcinoma | 1 (1.0) | 13 (3.0) | |
| Others | 2 (1.9) | 5 (1.1) | |
| Grade | <0.0005 | ||
| I&II (low grade) | 18 (18) | 239 (56.2) | |
| III (high grade) | 82 (82) | 186 (44.8) | |
| Axillary lymph node metastasis | 0.021 | ||
| yes | 29 (27.9) | 176 (40.1) | |
| no | 75 (72.1) | 263 (59.9) | |
| Lymphatic vessel invasion | 0.083 | ||
| yes | 29 (27.9) | 162 (36.9) | |
| no | 75 (72.1) | 277 (63.1) | |
| Papilla invasion | 0.221 | ||
| yes | 2 (1.9) | 20 (4.6) | |
| no | 102 (98.1) | 419 (95.4) |
yrs: years-old, MRM: Modified radical mastectomy, M: Mastectomy, SLNB: Sentinel Lymph Node Biopsy, ALND: Axillary Lymph Node Dissection, BCS: Breast Conservative Surgery.