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Table 3 Multivariate analyses of survival (Cox proportional hazards model)

From: Prognostic factors and a new scoring system for survival of patients irradiated for bone metastases

 Hazard ratio95% confidence intervalp-value
Karnofsky performance score1.911.51–2.41< 0.001
Type of primary tumor1.121.07–1.17< 0.001
Interval between cancer diagnosis and RT of bone metastases1.140.92–1.420.23
Visceral metastases at the time of RT1.190.96–1.490.12
Pathological fracture1.190.93–1.510.16
Fractionation of RT1.020.86–1.220.84
  1. Bold values = significant p-values