Table 1 Distribution of the potential prognostic factors in the two treatment groups
5 x 4 Gy | 10 x 3 Gy | |
|---|---|---|
N patients (%) | N patients (%) | |
Age | ||
≤63 years (N = 142) | 71 (50) | 71 (50) |
≥64 years (N = 142) | 71 (50) | 71 (50) |
Gender | ||
Female (N = 138) | 69 (49) | 69 (49) |
Male (N = 146) | 73 (51) | 73 (51) |
ECOG performance status | ||
1-2 (N = 226) | 113 (80) | 113 (80) |
3-4 (N = 58) | 29 (20) | 29 (20) |
Type of primary tumor | ||
Breast cancer (N = 110) | 55 (39) | 55 (39) |
Prostate cancer (N = 76) | 38 (27) | 38 (27) |
Myeloma/lymphoma (N = 40) | 20 (14) | 20 (14) |
Lung cancer (N = 12) | 6 (4) | 6 (4) |
Other tumors (N = 46) | 23 (16) | 23 (16) |
Involved vertebrae (N) | ||
1-2 (N = 134) | 67 (47) | 67 (47) |
≥3 (N = 150) | 75 (53) | 75 (53) |
Other bone metastases at the time of RT | ||
No (N = 140) | 70 (49) | 70 (49) |
Yes (N = 144) | 72 (51) | 72 (51) |
Visceral metastases at the time of RT | ||
No (N = 264) | 132 (93) | 132 (93) |
Yes (N = 20) | 10 (7) | 10 (7) |
Interval from tumor diagnosis to MESCC | ||
≤15 months (N = 80) | 40 (28) | 40 (28) |
>15 months (N = 204) | 102 (72) | 102 (72) |
Ambulatory status before RT | ||
Not ambulatory (N = 30) | 15 (11) | 15 (11) |
Ambulatory (N = 254) | 127 (89) | 127 (89) |
Time developing motor deficits before RT | ||
1-7 days (N = 20) | 10 (7) | 10 (7) |
8-14 days (N = 68) | 34 (24) | 34 (24) |
>14 days (N = 196) | 98 (69) | 98 (69) |