Table 6. Multivariate Cox proportional hazard regression analysis in combined cohort (237 primary melanoma patients) for KAI1 as a single biomarker.

	Hazard Ratio	95% CI	P value
Age: > 60 vs ≤ 60 y	1.271	0.727-2.224	0.400
Gender: male vs female	0.985	0.609-1.692	0.954
Thickness: > 2 vs ≤ 2 mm	3.256	1.728-6.137	2.609E-4
Ulceration: + vs -	2.616	1.535-4.459	4.082E-4
KAI1: - vs +	2.083	1.096-3.953	0.025

CI: confidence interval.