At 6 months | At 12 months | P | |
---|---|---|---|
RT regimen | |||
5 x 4 Gy (N = 142) | 95 | 87 | |
10 x 3 Gy (N = 142) | 98 | 93 | 0.16 |
Age | |||
≤63 years (N = 142) | 97 | 92 | |
≥64 years (N = 142) | 97 | 87 | 0.84 |
Gender | |||
Female (N = 138) | 98 | 93 | |
Male (N = 146) | 95 | 86 | 0.27 |
ECOG performance status | |||
1-2 (N = 226) | 97 | 91 | |
3-4 (N = 58) | 96 | 82 | 0.11 |
Type of primary tumor | |||
Breast cancer (N = 110) | 99 | 93 | |
Prostate cancer (N = 76) | 95 | 84 | |
Myeloma/lymphoma (N = 40) | 100 | 95 | |
Lung cancer (N = 12) | 100 | 100 | |
Other tumors (N = 46) | 91 | 84 | 0.16 |
Involved vertebrae (N) | |||
1-2 (N = 134) | 98 | 93 | |
≥3 (N = 150) | 96 | 87 | 0.09 |
Other bone metastases at the time of RT | |||
No (N = 140) | 96 | 91 | |
Yes (N = 144) | 97 | 88 | 0.53 |
Visceral metastases at the time of RT | |||
No (N = 264) | 97 | 90 | |
Yes (N = 20) | 100 | 80 | 0.32 |
Interval from tumor diagnosis to MESCC | |||
≤15 months (N = 80) | 97 | 97 | |
>15 months (N = 204) | 97 | 88 | 0.24 |
Ambulatory status before RT | |||
Not ambulatory (N = 30) | 96 | 71 | |
Ambulatory (N = 254) | 97 | 91 | 0.027 |
Time developing motor deficits before RT | |||
1-7 days (N = 20) | 78 | 78 | |
8-14 days (N = 68) | 98 | 96 | |
>14 days (N = 196) | 98 | 89 | 0.028 |