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. Author manuscript; available in PMC: 2014 Sep 19.
Published in final edited form as: J Urol. 2008 Jul 17;180(3):867–872. doi: 10.1016/j.juro.2008.05.017

Table 2B. Multivariate Cox Proportional Hazards Model for Progression-free Survival.

Variable Relative Risk 95% Confidence Intervals P-value
Number of disease sites >=4 (versus <4) 2.14 1.21 – 3.78 0.009
Hemoglobin 0.90 0.80 – 1.01 0.08