Table 2.
Patient demographics, tumor characteristics, and treatment modality
| Characteristic | ||
|---|---|---|
| Age at diagnosis, yrs | Mean ± SD | 51.70 ± 18.81 |
| Median (range) | 52.00 (8–93) | |
| Age at diagnosis stratified, n (%) | 0–29 | |
| 30–59 | ||
| > 59 | ||
| Sex, n (%) | Male | 675 (62.0) |
| Female | 413 (38.0) | |
| Race, n (%) | White | 938 (86.2) |
| Black | 79 (7.3) | |
| Other (Asian) | 59 (5.4) | |
| Unknown | 12 (1.1) | |
| Primary site involved, n (%) | Vertebral column | 218 (20) |
| Pelvic bones, sacrum | 870 (80) | |
| Histology type | Chondrosarcoma, NOS | 948 (87.1) |
| Juxtacortical chondrosarcoma | 7 (0.6) | |
| Myxoid chondrosarcoma | 60 (5.5) | |
| Mesenchymal chondrosarcoma | 23 (2.1) | |
| Clear cell chondrosarcoma | 6 (0.6) | |
| Dedifferentiated chondrosarcoma | 44 (4.0) | |
| Grade | I | 300 |
| II | 397 | |
| III | 121 | |
| IV | 63 | |
| Unknown | 207 (19.0) | |
| Stage of the tumor | Localized | 411 (37.8) |
| Regional | 450 (41.4) | |
| Distant | 147 (13.5) | |
| Unknown | 80 (7.4) | |
| Surgery performed, n (%) | Yes | 818 (75.2) |
| No | 249 (22.9) | |
| Unknown | 21 (1.9) | |
| Radiation therapy (%) | Yes | 228 (21.0) |
| No | 848 (77.9) | |
| Unknown | 12 (1.1) | |
| Chemotherapy (%) | Yes | 139 (12.8) |
| No | 949 (87.2) | |
| Cause of death (%) | Tumor related | 333 (30.6) |
| Other | 223 (20.5) | |
| Censored | 532 (48.9) |
NOS not otherwise specified