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. Author manuscript; available in PMC: 2016 May 18.
Published in final edited form as: Prostate Cancer Prostatic Dis. 2015 Nov 17;19(1):72–78. doi: 10.1038/pcan.2015.53

Table 2.

Propensity Score-Weighted Multivariable Cox Model for Clinical/Radiographic Progression-Free Survival (PFS).

Hazard Ratio (95% C.I.) P-value

Treatment
 Docetaxel Alone 1.0 [Ref]
 Docetaxel + Prednisone 0.53 (0.35 – 0.80) 0.002

Performance Status
 0 1.0 [Ref]
 1 – 2 1.37 (1.003 – 1.87) 0.05

Presence of Pain
 No 1.0 [Ref]
 Yes 1.15 (0.86 – 1.55) 0.36

PSA 1 [Based upon 1 unit change] 0.91

Alkaline Phosphatase 1 0.83

Gleason Score
 6 1.0 [Ref]
 7 0.57 (0.33 – 0.99) 0.04
 8 – 10 0.60 (0.36 – 0.99) 0.05

Visceral Metastasis: Liver
 No 1.0 [Ref]
 Yes 1.22 (0.80 – 1.84) 0.36

Visceral Metastasis: Lung
 No 1.0 [Ref]
 Yes 1.07 (067 – 1.69) 0.78

Prior Abi/Keto.
 No 1.0 [Ref]
 Yes 0.73 (0.46 – 1.16) 0.18

Interaction
Treatment * Prior Abi/Keto 1.79 (1.001 – 3.19) 0.05