Table 4. Surgical complications and survival outcome (median follow up = 27 (13, 48) months).

Parameters	n (%)
Blue skin staining 1 week after surgery	16/1,475 (1%)
Skin necrosis	1/1,475 (0.06%)
Lymphedema
SLNB only	6/1,057 (0.5%)	χ2 = 36, p < 0.001
ALND	24/458 (5.2%)
SLNB negative (n = 1,023)
Isolated axillary recurrence	4/1,023 (0.04%)
FNR	4/441 (0.9%)
DFS (10 year estimated)	81% (95% CI 66%–89%)
OS (10 year estimated)	79% (57%–90%)