Table 2.
Predictive factor | Score (points) |
General condition (KPS) | |
Poor (KPS 10%-40%) | 0 |
Moderate (KPS 50%-70%) | 1 |
Good (KPS 80%-100%) | 2 |
Number of extraspinal bone metastases foci | |
≥ 3 | 0 |
1-2 | 1 |
0 | 2 |
Number of metastases in the vertebral body | |
≥ 3 | 0 |
2 | 1 |
1 | 2 |
Metastases to the major internal organs | |
Unremovable | 0 |
Removable | 1 |
No metastases | 2 |
Primary site of the cancer | |
Lung, osteosarcoma, stomach, bladder, esophagus, pancreas | 0 |
Liver, gallbladder, unidentified | 1 |
Others | 2 |
Kidney, uterus | 3 |
Rectum | 4 |
Thyroid, prostate, breast, carcinoid tumor | 5 |
Spinal cord palsy | |
Complete (Frankel A, B) | 0 |
Incomplete (Frankel C, D) | 1 |
None (Frankel E) | 2 |
Total points | Mean survival periods |
0-8 | < 6 mo |
9-11 | ≥ 6 mo |
12-15 | ≥ 12 mo |
KPS: Karnofsky’s performance status.