Table 3. Univariable and multivariable analyses for clinical feature.

Variable	Univariate analysis				Multivariate analysis
	HR	95% CI	P value		HR	95% CI	P value
Risk score	4.99	2.55–9.77	<0.001		5.42	2.76–10.66	<0.001
Age	1.02	1.01–1.04	0.007		1.03	1.02–1.05	<0.001
Histologic grade	1.31	0.98–1.75	0.068		–	–	–
Gender	1.32	0.93–1.89	0.12		–	–	–
Tumor stage	1.22	1.02–1.46	0.028		1.27	1.05–1.53	0.012

HR, hazards ratio; CI, confidence interval.