Table 1:
Demographics of Patient Cohort with Relapsed Osteosarcoma
| N = 431 | N (%) | |
|---|---|---|
| Sex | Male | 258 (60) |
| Female | 173 (40) | |
| Race | Black | 64 (15) |
| Other | 25 (6) | |
| White | 286 (66) | |
| Unknown | 56 (13) | |
| Ethnicity | Non-Hispanic | 331 (77) |
| Hispanic | 56 (13) | |
| Unknown | 44 (10) | |
| Age at enrollment | < 10 years | 63 (15) |
| 10–17 years | 303 (70) | |
| ≥ 18 years | 65 (15) | |
| Site of Initial Tumor | Extremity | 405 (94) |
| Pelvis | 17 (4) | |
| Other1 | 9 (2) | |
| Disease at Diagnosis | Non-metastatic | 314 (73) |
| Metastatic | 117 (27) | |
| Histologic Response | Good | 95 (22) |
| Poor | 231 (54) | |
| Unknown | 105 (24) |
1
The “other” primary sites included jaw, rib, skull, and vertebral primary disease