Table 1 Clinical characteristics of Osteosarcoma patients
Patients (n = 67) | n | (%) |
|---|---|---|
Gender | ||
 Male | 45 | 67 |
 Female | 22 | 33 |
Age (years) | ||
  < 10 | 8 | 12 |
 10–19 | 34 | 51 |
 20–29 | 15 | 22 |
 30–39 | 6 | 9 |
  ≥ 40 | 4 | 3 |
Tumor type | ||
 Osteoblastic | 43 | 64 |
 Chondroblastic | 14 | 21 |
 Fibroblastic | 6 | 9 |
 Telangiectatic | 4 | 6 |
Anatomic site | ||
 Extremities | 57 | 85 |
 Axial (pelvis or spine) | 10 | 15 |
Metastasis | ||
 Total metastasis | 24 | 36 |
 Present at diagnosis | 5 | 7 |
 Metastasis after diagnosis | 19 | 28 |
Chemotherapy response | ||
 Responders (*SK I-III) | 30 | 57 |
 Non-responders (SK IV-VI) | 23 | 43 |