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Surgically removed axillary lymph node status.
| SLNB only | ALND | P-value | |
|---|---|---|---|
| N (%) | N (%) | ||
| Number of sentinel nodes | 0.053 | ||
| 1 | 1 (0.9) | 3 (1.9) | |
| 2 | 7 (6.6) | 14 (9.1) | |
| 3 | 20 (18.9) | 40 (26.0) | |
| 4 | 29 (27.4) | 27 (17.5) | |
| 5 | 40 (37.7) | 40 (26.0) | |
| > 5 | 9 (8.4) | 30 (18.9) | |
| Mean (standard deviation) | 4.2 (1.12) | 4.26 (1.55) | 0.767 |
| Largest invasion depth (mm) | 4.7 | 7.63 | 0.114 |
SLNB, sentinel lymph node biopsy; ALND, axillary lymph node dissection.
