Table 2.
Osteosarcoma (n=648) and Ewing sarcoma demographics (n=736)
| Osteosarcoma (n=648) | Ewing sarcoma (n=736) | ||
|---|---|---|---|
| Age | Years | Age | Years |
| Mean | 48.1±23.8 | Mean | 19.9±11.6 |
| Median | 51 | Median | 17.0 |
| Min | 3 | Min | 0 |
| Max | 94 | Max | 75 |
| Characteristic | Percentage (n) | Characteristic | Percentage (n) |
| Sex | Sex | ||
| Female | 44.6 (289) | Female | 36.1 (266) |
| Male | 55.4 (359) | Male | 63.9 (470) |
| Race | Race | ||
| White | 82.2 (533) | White | 91.0 (670) |
| Black | 11.1 (72) | Black | 2.9 (21) |
| Other | 6.5 (42) | Other | 6.0 (44) |
| Unknown | 0.2 (1) | Unknown | 0.1 (1) |
| Decade | Decade | ||
| 1970s | 9.4 (61) | 1970s | 7.9 (58) |
| 1980s | 13.2 (86) | 1980s | 11.5 (85) |
| 1990s | 18.1 (117) | 1990s | 20.1 (148) |
| 2000s | 59.3 (384) | 2000s | 60.5 (448) |
| Extent of disease | Extent of disease | ||
| Confined | 5.2 (34) | Confined | 4.6 (34) |
| Locally invasive | 48.2 (312) | Locally invasive | 47.6 (350) |
| Metastasis | 24.4 (158) | Metastasis | 30.4 (224) |
| Unknown | 22.2 (144) | Unknown | 17.4 (128) |
| Surgery performed* | Surgery performed* | ||
| Yes | 50.0 (324) | Yes | 40.2 (296) |
| No | 46.8 (303) | No | 56.1 (413) |
| Unknown | 3.2 (21) | Unknown | 3.7 (27) |
| Radiation therapy* | Radiation therapy* | ||
| Yes | 29.9 (194) | Yes | 65.1 (479) |
| No | 68.2 (442) | No | 31.9 (235) |
| Unknown* | 1.8 (12) | Unknown* | 3.0 (22) |
| Treatment modality* | Treatment modality* | ||
| Surgery+Radiation | 12.0 (78) | Surgery+Radiation | 24.9 (183) |
| Surgery only | 38.3 (248) | Surgery only | 14.3 (105) |
| Radiation only | 15.9 (103) | Radiation only | 37.9 (279) |
| No therapy | 28.9 (187) | No therapy | 17.3 (127) |
| Unknown* | 4.9 (32) | Unknown* | 5.7 (42) |
| Size (cm) | Size (cm) | ||
| Mean | 8.8±5.8 | Mean | 8.1±5.6 |
| Median | 8.0 | Median | 7.5 |
*
Indicates that category distributions for surgery performed and radiation therapy are not additive to treatment modality because they are not necessarily independent events.