Table 4.
Detailed scores of prognostic factors in the overall and cancer-specific survival nomograms
| Characteristic | OS nomogram | CSS nomogram |
|---|---|---|
|
| ||
| Age (years) | ||
| <25 | 0 | 0 |
| >51 | 2.0 | 1.6 |
| 25–51 | 0.9 | 0.8 |
| Tumor site | ||
| Axial | 1.1 | 1.1 |
| Extremity | 0 | 0 |
| Histology | ||
| A (9180) | 8.3 | 8.1 |
| B (9181) | 7.9 | 7.7 |
| C (9182) | 7.9 | 7.7 |
| D (9183) | 8.9 | 8.8 |
| E (9184) | 10.0 | 10.0 |
| F (9185) | 6.2 | 6.3 |
| G (9186) | 7.5 | 7.5 |
| H (9187) | 0 | 0 |
| I (9192) | 8.3 | 8.0 |
| J (9193) | 5.2 | 5.3 |
| K (9194) | 8.3 | 8.3 |
| Tumor stage | ||
| Localized | 0 | 0 |
| Regional | 0.9 | 1.0 |
| Distant | 3.1 | 3.0 |
| Surgery | ||
| No | 1.5 | 1.4 |
| Yes | 0 | 0 |
| Size | ||
| <8.9 | 0 | 0 |
| >13.9 | 1.5 | 1.4 |
| 8.9–13.9 | 0.6 | 0.6 |
| Grade | ||
| High | 1.6 | 1.3 |
| Low | 0 | 0 |
Notes: A, conventional osteosarcoma; B, chondroblastic osteosarcoma; C, fibroblastic osteosarcoma; D, telangiectatic osteosarcoma; E, osteosarcoma in Paget disease of bone; F, small cell osteosarcoma; G, central osteosarcoma; H, intraosseous well-differentiated osteosarcoma; I, parosteal osteosarcoma; J, periosteal osteosarcoma; K, high-grade surface osteosarcoma.