Table 2. Univariate Cox regression analysis.

Variable	Characteristics	Recurrence-free survival
		HR	95% CI	p*
Age at diagnosis		1.006	0.964–1.050	0.772
Gleason score (grouped)	5–6 vs 7 vs 8–10	2.675	1.831–3.906	<0.001
Tumors stage (grouped)	pT2a–c vs pT3a-4	2.336	1.625–3.356	<0.001
Surgical margin status	negative vs positive	3.268	2.069–5.161	<0.001
Preoperative PSA level	<10 ng/mL vs≥10 ng/mL	2.317	1.432–3.748	0.001
CT10 immunoreactivity	negative vs positive	2.913	1.170–7.252	0.022

*P-values<0.05 are marked in bold.

HR = Hazard ratio.