Table 2.
Postsurgical characteristics of patients with node-negative and positive breast cancer at admission
| Variables | All Patients N = 185 |
cN0 at admission n = 68 |
cN1 at admission n = 117 |
p value |
|---|---|---|---|---|
| Breast surgery | 0.779 | |||
| BCS | 90 (48.6%) | 34 (50%) | 56 (47.9%) | |
| Mastectomy | 95 (51.4%) | 34 (50%) | 61 (52.1%) | |
| Axilla surgery | 0.002 | |||
| SLNB | 131 (70.8%) | 58 (85.3%) | 73 (62.4%) | |
| SLNB with ALND | 34 (18.4%) | 4 (5.9%) | 30 (25.6%) | |
| SLNB with no SLN identified and ALND | 20 (10.8%) | 6 (8.8%) | 14 (12%) | |
| Number of examined SLN | 0.873 | |||
| <3 | 34 (20.6%) | 13 (21%) | 21 (20.4%) | |
| ≥3 | 131 (79.4%) | 49 (79%) | 82 (79.6%) | |
| Median | 4 (2–5) | 4 (2–5) | 3 (2–4) | |
| ypT | 0.517 | |||
| ypTx/Tis | 74 (40%) | 31 (45.6%) | 43 (36.5%) | |
| ypT1 | 74 (40%) | 23 (33.8%) | 51 (43.6%) | |
| ypT2 | 26 (14.1%) | 9 (13.2%) | 17 (14.5%) | |
| ypT3 | 11 (5.9%) | 5 (7.4%) | 6 (5.1%) | |
| ypN | <0.001 | |||
| ypN0 | 125 (67.6%) | 60 (88.2%) | 65 (55.6%) | |
| ypNi+ | 7 (3.8%) | 1 (1.5%) | 6 (5.1%) | |
| ypNmi | 4 (2.2%) | 0 | 4 (3.4%) | |
| ypN1 | 41 (22.2%) | 7 (10.3%) | 34 (29.1%) | |
| ypN2 | 8 (4.3%) | 0 | 8 (6.8%) | |
| Adjuvant radiotherapy | 164 (88.6%) | 53 (77.9%) | 111 (94.9%) | <0.001 |
| Adjuvant endocrine therapy | 132 (71.4%) | 40 (58.8%) | 92 (78.6%) | 0.004 |
Categorical data are expressed as n (%), and continuous data are expressed as medians (IQRs)
BCS Breast-conserving surgery, SLN Sentinel lymph node, SLNB Sentinel lymph node biopsy, ALND Axillary lymph node dissection, ypN Pathological lymph node, ypT Pathological T stage