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Patient characteristics (n = 42)
| Characteristic | n (%) |
|---|---|
| Age (years), median (range) | 66 (43–89) |
| Gender | |
| Male | 31 (74) |
| Female | 11 (26) |
| Performance status | |
| 0 | 5 (12) |
| 1 | 20 (48) |
| 2 | 14 (33) |
| 3 | 3 (7) |
| Primary cancer site | |
| Kidney | 9 (21) |
| Lung | 8 (19) |
| Liver | 7 (17) |
| Colon | 3 (7) |
| Thyroid | 3 (7) |
| Others | 12 (29) |
| Spinal region treated | |
| Cervical | 7 (17) |
| Thoracic | 26 (62) |
| Lumber | 9 (21) |
