Table 1. Baseline characteristics of the 92 bone sarcoma patients in the present study.
| Characteristic | No. of Patients (%) |
|---|---|
| Sex | |
| Male | 58 (63) |
| Female | 34 (37) |
| Age, years | |
| Median | 24 |
| Range | 11–79 |
| <18 | 11 (11) |
| 18–39 | 53 (58) |
| 40–65 | 18 (20) |
| >65 | 10 (11) |
| Tumor type | |
| Ewing sarcoma | 47 (51) |
| Osteosarcoma | 22 (24) |
| Chondrosarcoma | 16 (17) |
| Chordoma | 5 (5) |
| Other | 2 (3) |
| ECOG performance status | |
| 0 | 25 (27) |
| 1 | 57 (62) |
| 2 | 7 (8) |
| No. of prior chemotherapies | |
| Median | 3 |
| Range | 0–11 |
| 0–2 | 47 (51) |
| ≥3 | 45 (49) |
| Prior radiation therapy | |
| Yes | 57 (62) |
| No | 35 (38) |
| Prior immunotherapy, including monoclonal antibodies | |
| Yes | 12 (13) |
| No | 80 (87) |
| No. of metastases | |
| ≤2 | 66 (72) |
| >2 | 26 (28) |
| RMH score | |
| 0 or 1 | 74 (81) |
| 2 or 3 | 17 (19) |
| MDACC score | |
| 0 or 1 | 49 (53) |
| 2–4 | 40 (45) |
RMH: Royal Marsden Hospital prognostic score, MDACC: MD Anderson Cancer Center prognostic score.