Research Article
Prognostic Factors and Treatment Results of High-Grade Osteosarcoma in Norway: A Scope Beyond the “Classical” Patient
Table 3
Patients who received inadequate treatment dependent of subgroup of high-grade osteosarcoma (OS).
| | Patientsa | Not adequate treatment (%b) | Reason for inadequacy | Surgery (%c) | Chemotherapy (%c) | Both (%c) |
| Classical OS | 200 | 56 (28) | 0 (0) | 52 (93) | 4 (7) | Nonclassical OS | 218 | 146 (67) | 32 (22) | 45 (31) | 69 (47) | Nonextremity only | 39 | 20 (51) | 9 (45) | 6 (30) | 5 (25) | Primary metastasis only | 46 | 23 (50) | 15 (65) | 2 (9) | 6 (26) | Age >40 only | 45 | 32 (71) | 0 (0) | 24 (75) | 8 (25) | Several factors combined | 88 | 71 (81) | 8 (11) | 13 (18) | 50 (71) |
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Six uncertain cases were not included. bIn % of cases from second column. cIn % of all cases of inadequate treatment for each subgroup.
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