Table 3.

The relationship between risk factors and 5 years biochemical recurrence survival (result of Cox regression analysis).

	Regression coefficients	Standard error	Wald	p-Value	Relative risk
PSA	0.019	0.006	9.282	0.002	1.02
Age	−0.084	0.024	12.06	0.001	0.919
Gleason score	0.259	0.174	2.202	0.138	1.295
Clinical stage	0.316	0.143	4.872	0.027	1.371

PSA, prostate specific antigen.