Table 1.

Univariate and multivariate Cox regression analyses of age, gender, grade, age, and risk score

Variables	Univariable analysis				Multivariable analysis
	HR	95% CI of HR		P	HR	95% CI of HR		P
		lower	upper			lower	upper
Age	1.03	1.01	1.04	2.18E-05	1.03	1.01	1.04	6.08E-05
Gender	0.97	0.71	1.33	0.8675	0.89	0.64	1.24	0.6315
Grade	2.26	1.84	2.77	4.43E-15	1.11	0.27	4.63	0.0040
Stage	1.86	1.63	2.13	2.46E-20	1.66	1.36	2.02	4.33E-11
RiskScore	4.52	3.08	6.62	1.07E-14	7.71	3.04	19.56	2.74E-07