Table 5.
Factors affecting treatment outcomes in children with primary malignant bone tumors
| Survival status | P-value | ||||
|---|---|---|---|---|---|
| Died | Alive | Unknown | |||
| Age | Under 5 years | 3(60%) | 1(20%) | 1(20%) | 0.687 |
| 5 to 10 years | 22(47.8%) | 10(21.7%) | 14(30.4%) | ||
| 11 to 15 years | 19(43.2%) | 15(34.1%) | 10(22.7%) | ||
| Sex | Male | 23(46%) | 15(30%) | 12(24%) | 0.784 |
| Female | 21(46.7%) | 11(24.4%) | 13(28.9%) | ||
| Duration of illness | < 1 year | 40(44.9%) | 24(27%) | 25(28.1%) | 0.392 |
| 1 to 5 years | 2(50%) | 2(50%) | 0(0%) | ||
| Primary site occurrence | lower extremities | 23(43.4%) | 17(32.1%) | 13(24.5%) | 0.078 |
| pelvis | 2(22.2%) | 2(22.2%) | 5(55.6%) | ||
| shoulder | 8(80%) | 1(10%) | 1(10%) | ||
| upper extremities | 8(66.7%) | 1(8.3%) | 3(25%) | ||
| others | 3(27.3%) | 5(45.5%) | 3(27.3%) | ||
| Histologic finding | osteosarcoma | 25(39.7%) | 22(34.9%) | 16(25.4%) | 0.05 |
| Ewing sarcoma | 19(59.4%) | 4(12.5%) | 9(28.1%) | ||
| Stage of disease at diagnosis | localized | 21(37.5%) | 21(37.5%) | 14(25%) | 0.023 |
| metastasis | 23(59%) | 5(12.8%) | 11(28.2%) | ||