Table 2. Multivariate Cox regression analysis of prognostic biomarkers in 61 PCa patients.

Factors	Category	X2	P	HR*	95% CI*
Age (years)	≤72	0.353	0.552	0.988	0.949–1.028
	>72
Gleason score	≤7	0.227	0,634	1.220	0.538–2.763
	>7
Metastasis before surgery	+	3.659	0.056	1.966	0.983–3.928
	-
PSA	≤20ng/ml	0.302	0.583	0.785	0.331–1.863
	>20ng/m
SFRP1 expression	positive	6.755	0.009	0.429	0.227–0.812
	negative
β-catenin expression	positive	2.216	0.137	0.593	0.298–1.180
	negative

*HR hazard ratio, CI confidence interval.