Table 3.

Univariate and multivariate analysis of disease-free survival and overall survival

Survival variable	Disease-free survival			Overall survival
	95%CI2	P value	HR1	95%CI2	P value	HR1
Univariate analysis
KLK10
Negative			1.00			1.00
Positive	0.25-0.74	0.002	0.46	0.26-0.79	0.005	0.43
Age	0.97-1.01	0.46	0.99	0.97-1.01	0.49	0.99
Sex	0.55-1.53	0.75	0.90	0.54-1.51	0.69	0.92
Depth of invasion	1.55-2.81	< 0.001	2.13	1.57-2.89	< 0.001	2.08
Lymph node metastasis	0.97-1.97	0.07	1.42	0.99-2.02	0.051	1.38
Histology	6.42-22.46	< 0.001	10.25	5.73-18.32	< 0.001	12.01
Multivariate analysis
KLK10
Negative		1.00			1.00
Positive	0.31-0.96	0.03	0.58	0.33-1.02	0.06	0.55
Age	0.95-1.00	0.02	0.97	0.95-0.99	0.04	0.97
Sex	0.77-2.22	0.31	1.33	0.77-2.28	0.30	1.31
Depth of invasion	0.99-1.90	0.06	1.42	1.02-1.98	0.03	1.37
Lymph node metastasis	0.84-1.59	0.35	1.21	0.87-1.67	0.24	1.16
Histology	6.55-25.41	0.03	11.11	5.87-21.02	< 0.001	12.90

¹Hazard ratio (HR) estimated from Cox proportional hazard regression model;

²Confidence interval of the estimated HR. KLK10: Kallikrein gene 10.