Table IV.

Multivariate Cox regression analysis of the 6-biomarker index score on 5-year patient survival in the 118 melanoma cases.

Variablesa	Overall survival			Disease-specific survival
	RR	95% CI	P-value	RR	95% CI	P-value
Age	0.574	0.337–0.979	0.042	0.838	0.457–1.535	0.567
Gender	1.111	0.635–1.943	0.713	0.976	0.523–1.822	0.940
6-Biomarkerb	0.237	0.125–0.453	1×10−5	0.208	0.105–0.414	7×10−6

^aCoding of variables: age was coded as 1, ≤59 years and 2, >59 years; gender was coded as 1, female and 2, male; score was coded as 1, low score (0–16) and 2, high score (17–48);

^bScore represents the 6-biomarker combined index score.