TABLE 6

Cox Regression Analysis of Factors Predicting PCa-Specific Survival (Calculated from Time of ¹¹C-Choline PET/CT) in Whole Sample (n = 195)

	Univariate analysis		Multivariate analysis
Parameter	HR	P	HR	P
¹¹C-choline PET/CT	4.03 (2.37–6.87)	<0.001	3.16 (1.72–5.78)	<0.001
Age (y)	1.04 (1.00–1.07)	0.045	1.06 (1.02–1.10)	0.002
PSA (ng/mL)	1.05 (1.02–1.07)	<0.001	1.05 (1.02–1.07)	<0.001
Pathologic stage		0.005		0.017
pT2pN0	1 (reference)		1 (reference)
pT3pN0 and pT4pN0	1.22 (0.69–2.14)	0.485	0.89 (0.49–1.64)	0.727
Any T pN1	2.38 (1.35–4.19)	0.003	1.85 (1.02–3.38)	0.043
Gleason score		0.276		0.610
<7	1 (reference)		1 (reference)
7	1.29 (0.69–2.42)	0.415	1.11 (0.58–2.12)	0.732
>7	1.65 (0.87–3.11)	0.119	1.35 (0.70–2.60)	0.366
Additional therapy	2.01 (1.28–3.15)	0.002	1.15 (0.69–1.91)	0.576

Data in parentheses are 95% CI.