Table 2.
Observed local recurrence-free and metastasis-free survival at 2, 5, and 10 years compare rates between sarcoma grades and diagnoses with associated 95% confidence intervals
| Survival | Grade | 2-year % (95% CI) | 5-year % (95% CI) | 10-year % (95% CI) |
|---|---|---|---|---|
| Local recurrence-free survival, all diagnoses | 1 | 97.1 (± 2.7) | 91.8 (± 4.7) | 89.02 (± 5.3) |
| 2 | 94.3 (± 2.9) | 90.7 (± 3.9) | 89.1 (± 4.3) | |
| 3 | 90.5 (± 3.5) | 90.0 (± 3.7) | 88.5 (± 4.1) | |
| Metastasis-free survival, all diagnoses | 1 | 98.5 (± 2.0) | 95.5 (± 3.5) | 95.5 (± 3.5) |
| 2 | 85.3 (± 4.5) | 83.0 (± 4.9) | 76.3 (± 5.9) | |
| 3 | 64.6 (± 5.7) | 58.1 (± 5.9) | 54.9 (± 6.1) | |
| Metastasis-free survival, OSA | 1 | 97.9 (± 4.1) | 98.1% (± 3.7) | 98.1% (± 3.7) |
| 2 | 71.9 (± 11.4) | 88.5 (± 5.1) | 81.9 (± 6.5) | |
| 3 | 60.9 (± 7.4) | 51.4 (± 16.3) | 51.4 (± 16.3) | |
| Metastasis-free survival, CSA | 1 | 100 (± 0) | 87.3 (± 11.6) | 87.3 (± 11.6) |
| 2 | 91.3 (± 4.5) | 81.1 (± 16.7) | 67.8 (± 22.1) | |
| 3 | 57.1 (± 15.9) | 67.5 (± 10.6) | 62.7 (± 11.8) | |
| Metastasis-free survival, all other diagnoses | 1 | 96.9 (± 5.9) | 97.9 (± 4.1) | 97.9 (± 4.1) |
| 2 | 81.1 (± 16.7) | 70.1 (± 11.6) | 65.5 (± 12.5) | |
| 3 | 76.1 (± 9.4) | 55.0 (± 7.6) | 51.8 (± 7.8) | |
| Metastasis-free survival, Grade 2 OSA as high grade | Low | 98.5 (± 2.0) | 95.5 (± 3.5) | 95.5 (± 3.5) |
| Intermediate | 90.0 (± 4.5) | 87.6 (± 4.9) | 80.1 (± 6.5) | |
| High | 66.0 (± 5.1) | 60.2 (± 5.3) | 56.8 (± 5.5) |
CI = confidence interval; OSA = osteosarcoma; CSA = chondrosarcoma.