Table 2.

Long-term treatment results.

Analysed clinical data	Group I No SLN extracapsular extension n = 433 (%) [a]	Group II Focal extracapsular extension in SLN n = 61 (%) [b]	Group III Extensive extracapsular extension in SLN n = 397 (%) [c]	Group II + III Extracapsular extension in SLN n = 458 (%) [b + c]	[a] vs [b + c]	[b] vs [c]
Disease recurrence	47 (10.9%)	5 (8.2%)	44 (11.1%)	49 (10.7%)	0.9402	0.4971
Local	13 (27.7%)	2 (40.0%)	6 (13.6%)	8 (16.3%)	0.2169	0.3265
Regional	3 (6.4%)	1 (20.0%)	0	1 (2.0%)	0.2896	nd
Distant metastases	35 (74.5%)	2 (40.0%)	39 (88.6%)	41 (83.7%)	0.5309	0.0955
Patient’s death	33 (7.6%)	2 (3.3%)	39 (9.8%)	41 (9.0%)	0.4719	0.1745