Table 2.

Univariate and multivariate analyses of variables correlated to biochemical recurrence survival

Variable	Univariate	Multivariate analysis
	P value	HR	95%CI	P value
Age	0.008	1.387	0.363–5.302	0.632
Prostate volume	0.001	1.964	0.721–5.351	0.187
PSA	< 0.001	1.200	0.385–3.734	0.753
Gleason score	< 0.001	2.487	1.062–5.824	0.036
pT stage	< 0.001	3.654	1.039–12.848	0.043
circKIF18B_003	< 0.001	10.465	1.139–96.190	0.038