Table 3. Clinical characteristics of patients with cutaneous melanoma in the three cohorts.

Variables		Training cohort	Testing cohort	Combined cohort
		(n=113)	(n=112)	(n=225)
Vital status, n(%)	Alive	43(38.1)	43(38.4)	86(38.2)
	Dead	70(61.9)	69(61.6)	139(61.8)
Age years, n(%)	>=60	41(36.3)	53(47.3)	94(41.8)
	<60	72(63.7)	56(50.0)	128(56.9)
	NA	0	3(2.7)	3(1.3)
Gender, n(%)	Female	42(37.2)	42(37.5)	84(37.3)
	Male	71(62.8)	70(62.5)	141(62.7)
Stage, n(%)	Stage I/II	46(40.7)	47(42.0)	93(41.3)
	Stage III/IV	50(44.3)	45(40.1)	95(42.2)
	NA	17(15.0)	20(17.9)	37(16.5)