Table 5.

Risk estimation in CM patients using clinical factors. N represents no. of samples for which data was available.

Factor	Strata	N	HR	p value
Age	>63y vs $\le$63y	449	1.83	4 × 10−4
	continuous	449	1.02	1.9 × 10−6
AJCC 6th ed.	Stage III, IV vs I,II	138	1.60	0.071
AJCC 7th ed.	Stage III, IV vs I,II	215	2.26	0.025
N staging	N1, N2, N3 vs N0	396	1.82	9 × 10−4
T staging	T2, T3, T4 vs Tis, T1	378	1.68	4.8 × 10−2
M staging	M1 vs M0	423	1.90	9.9 × 10−2
Breslow thickness	>3mm vs $\le$3mm	342	2.45	3 × 10−6
	continuous	342	1.03	10−4
Gender	Male vs Female	449	1.20	0.277
Ulceration status	Yes vs No	300	2.06	5 × 10−4