Table 6.

Factors associated with survival in all stages determined by Cox regression model (n = 2990)

	Univariate analysis				Multivariate analysis
	HR	95% CI low	95% CI high	P‐value	HR	95% CI low	95% CI high	P‐value
Age (cont)	1.004	0.998	1.009	0.203	1.01	1.004	1.016	0.001 21
Sex (male:0)	0.6194	0.5101	0.7521	0.000 001	0.8652	0.6652	1.125	0.280
T status (cont)	2.415	2.173	2.684	0.000 000	1.552	1.335	1.803	<0.000 00
Ulceration	3.438	2.811	4.206	<0.000 00	1.256	0.9344	1.689	0.131
Regression	1.567	1.031	2.38	0.0354	1.289	0.7783	2.134	0.324
Vitiligo	2.303	1.088	4.876	0.0293	1.954	0.7589	5.032	0.165
ALM (ref:SSM)	0.7244	0.597	0.8791	0.001 09	0.8605	0.6227	1.189	0.363
LMM (ref:SSM)	0.4259	0.2656	0.683	0.0004	0.5179	0.2216	1.211	0.129
NM (ref:SSM)	2.63	2.1	3.294	<0.000 00	1.379	0.9547	1.993	0.0867
Satellite/in‐transit	5.98	4.625	7.733	<0.000 00	1.025	0.6996	1.502	0.899
N status (cont)	2.602	2.402	2.818	<0.000 00	1.776	1.553	2.03	<0.000 00
Distant metastasis	11.83	9.444	14.82	<0.000 00	3.331	2.314	4.796	<0.000 00

ALM, acral lentiginous melanoma; CI, confidence interval; Cont, continuous variable; HR, hazard ratio; NC, not computable; N, nodal; ref, reference; SSM, superficial spreading melanoma, T, tumor thickness

Bold represents factors below P < 0.05 in multivariate analysis