Table 2. Univariate and multivariate Cox regression of clinicopathologic factors for survival in prostate cancer.

Clinical characteristics	HR	P-value
Univariate Cox regression
Age (<65 vs.≥65)	3.799 (0.897-16.081)	0.070
T stage (T1+T2 vs. T3+T4)	4.526 (1.008-20.321)	0.049
N stage (N0 vs. N1)	4.376 (0.881-21.729)	0.071
Gleason score (≤7 vs. >7)	8.130 (0.970-68.145)	0.053
PSA value (<4ng/ml vs. ≥4ng/ml)	3.982 (0.464-34.192)	0.208
Biochemical recurrence (NO vs. YES)	3.718 (0.830-16.663)	0.086
Race (White vs. Other)	0.802 (0.132-4.867)	0.811
RiskScore (Low vs. High)	1.173 (1.079-1.275)	<0.001
Multivariate Cox regression
T stage (T1+T2 vs. T3+T4)	1.979 (0.311-12.591)	0.470
RiskScore (Low vs. High)	1.145 (1.033-1.270)	0.010