Table 4

Multivariate analysis of survival (Cox proportional hazards model)
Risk ratio 95%- confidence interval p
Age
(≤65vs.>65 years) 1.14 0.83 – 1.58 0.42
ECOG performance score
(2vs.3–4) 2.12 1.40 – 3.29 <0.001
Ambulatory status prior to RT
(ambulatoryvs.ot ambulatory) 1.98 1.40 – 2.81 <0.001
Other bone metastases
(novs.yes) 1.38 0.98 – 1.95 0.07
Visceral metastases
(novs.yes) 2.74 1.93 – 3.91 <0.001
Time developing motor deficits
(>7vs.1–7 days 1.27 1.07 – 1.51 0.007

Douglas et al.

Douglas et al. BMC Cancer 2012 12:261   doi:10.1186/1471-2407-12-261

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