. Author manuscript; available in PMC: 2014 Aug 1.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2013 Jun 5;86(5):848–853. doi: 10.1016/j.ijrobp.2013.04.043

Table 3.

Summary of the fitted multivariable Cox model.^(a)

Covariate	Hazard ratio (95% CI)	χ² (df)	P-value

CCP score	2.11 (1.05, 4.25)	4.48 (1)	0.034

log(1 + PSA)	1.77 (0.90, 3.48)	2.93 (1)	0.087

Gleason score		3.25 (2)	0.197
<7	1.00 (ref)
7	3.73 (0.76, 18.2)
>7	2.71 (0.42, 17.5)

Percent positive cores	1.11 (0.13, 9.19)	0.01 (1)	0.920

Concurrent hormone use		0.05 (1)	0.826
No	1.00 (ref)
Yes	1.14 (0.35, 3.78)

Abbreviations: CCP = cell cycle progression; CI = confidence interval; χ² = chi-square; df = degrees of freedom; PSA = prostate-specific antigen; ref = reference category;

^(a)

N = 134, with 17 events