Table 4.

Recurrence‐free survival analysis

	Univariate analysis	Multivariate analysis
Age	P = 0.011 HRa 1.0; 95% CIb 1.0‐1.1	P = 0.14 HR 1.0; 95% CI 0.99‐1.1
Breslow thickness	P < 0.0001 HR 1.4; 95% CI 1.3‐1.5	P = 0.015 HR 1.2; 95% CI 1.0‐1.3
Ulceration	P < 0.0001 HR 5.4; 95% CI 2.6‐11.4	P = 0.69 HR 0.8; 95% CI 0.3‐2.1
SNBc results	P < 0.0001 HR 5.1; 95% CI 2.4‐11.1	P = 0.008 HR 3.5; 95% CI 1.4‐9.1
GEPd class	P < 0.0001; HR 15.0; 95% CI 6.1‐37.0	P = 0.0001 HR 9.2; 95% CI 3.0‐28.5

^ahazard ratio

^bconfidence interval

^csentinel node biopsy

^dgene expression profile