Table 3

Univariate analysis of survival
At 6 months (%) At 12 months (%) p
Age
   ≤65 years (n = 85) 32 8
   >65 years (n = 90) 19 12 0.048
Gender
   Female (n = 53) 26 13
   Male (n = 122) 25 8 0.38
ECOG performance score
   2 (n = 49) 53 24
   3-4 (n = 126) 14 4 <0.001
Number of involved vertebrae
   1-2 (n = 55) 33 9
   ≥3 (n = 120) 22 10 0.13
Ambulatory status prior to RT
   Not Ambulatory (n = 89) 15 3
   Ambulatory (n = 86) 36 17 <0.001
Other bone metastases
   No (n = 65) 38 15
   Yes (n = 110) 17 7 0.005
Visceral metastases
   No (n = 86) 45 16
   Yes (n = 89) 6 3 <0.001
Time developing motor deficits
   1-7 days (n = 88) 10 1
   >7 days (n = 87) 40 18 <0.001
Radiation schedule
   Short-course RT (n = 90) 21 11
   Longer-course RT (n = 85) 29 8 0.19
Entire cohort (n = 175) 25 9

Douglas et al.

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

Open Data