Table 1 Clinical characteristics of the osteosarcoma cohort
Characteristic | Number (n= 65) |
|---|---|
Age, yearsa, b | Â |
   Median | 12 |
   Range | 3 to 76 |
Gender | Â |
   Male | 30 (46%) |
   Female | 35 (54%) |
Specimens | Â |
   Biopsy | 65 |
   Resection | 26 |
   Chemosensitive tumors | 32 (49%) |
Tumor location | Â |
   Axial | 3 |
   Appendicular | 62 |
Events | Â |
   Recurrence | 23 |
   Death | 14 |
Metastases at diagnosis | Â |
   No | 54 |
   Yes | 11 |
Preoperative chemotherapy | Â |
   MAP only | 42 |
   Other than MAP (for example MAPIE, IE) | 23 |