Table 2.

Prognostic factors in stage III.

Factor	Value of “P”
Patient age	<0.0001
Male versus female	0.12
Primary location	0.002
Ulceration of primary tumour	0.13
Breslow thickness	0.05
Number of positive nodes	<0.0001
Clinical affectation of nodes	0.0003
Micro- versus macrometastasis in the lymphatic nodes	<0.001
Extranodal extension	0.07.