Table 2.

Multivariate Cox regression analyses for biochemical failure in the entire cohort (n = 1176)

Factor	Model 1		Model 2
	Hazard ratio (95% CI)	p-value	Hazard ratio (95% CI)	p-value
Age	0.99 (0.94–1.03)	0.49	1.01 (0.95–1.07)	0.78
PSA	1.09 (1.02–1.17)	0.011	1.08 (0.96–1.22)	0.22
Gleason	1.02 (0.72–1.46)	0.90	1.55 (0.73–3.27)	0.25
Clinical T stage	1.32 (0.59–2.94)	0.49	1.64 (0.48–5.55)	0.43
ADT	0.55 (0.31–0.99)	0.045	0.20 (0.07–.057)	0.002
Technique	0.13 (0.07–0.23)	<0.001	-----------
BED	-----------		0.987 (0.981–0.993)	<0.001

PSA, Prostate-specific antigen; ADT, Androgen deprivation therapy; BED, Biological effective dose.