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The baseline characters of patients included
| Characteristics | n (%) |
|---|---|
| Total number | 74 |
| Gender | |
| Male | 41 (55.4) |
| Female | 33 (44.6) |
| Tumor size (cm) | |
| > 7 | 49 (60.8) |
| ≤ 7 | 25 (39.2) |
| TNM stage | |
| I | 32 (43.2) |
| II | 25 (33.7) |
| III | 17 (51.6) |
| Location | |
| Distal femur | 31 (41.9) |
| Proximal femur | 7 (9.4) |
| Proximal humerus | 13 (17.5) |
| Proximal tibia | 20 (27.0) |
| Others | 3 (4.0) |
| Relapse | |
| Yes | 11 (14.9) |
| No | 63 (85.1) |
| Metastasis location | |
| Lung | 21 (28.3) |
| Others | 4 (5.4) |
| None | 49 (66.2) |
