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Baseline characteristics of the patients
| Features | Patients (n = 216) |
|---|---|
| Gender | |
| Male | 132 (61.1%) |
| female | 84 (38.2%) |
| Age (years) | |
| >20 | 95 (44.0%) |
| ≤20 | 121 (56.0%) |
| Surgery type | |
| Amputation | 52 (24.1%) |
| Limb-salvage | 164 (75.9%) |
| Enneking stages | |
| I | 18 (8.3%) |
| IIA | 65 (30.0%) |
| IIB | 102 (47.3%) |
| III | 31 (14.4%) |
| Histologic type | |
| Osteoblastic | 123 (56.9%) |
| Chondroblastic | 67 (31.0%) |
| Fibroblastic | 9 (4.2%) |
| Mixed | 17 (7.9%) |
| Tumor metastasis | |
| Presence | 71 (32.9%) |
| Absence | 145 (67.1%) |
