Table 2

Clinical characteristics of the osteosarcoma patients

Sex
 Male44 (45.6%)
 Female52 (54.4%)
Age
 <10 yr44 (45.6%)
 10–20 yr34 (35.3%)
 >20 yr18 (19.1%)
Histological subtype
 Osteoblastic52 (54.6%)
 Chondroblastic27 (27.3%)
 Fibroblastic5 (5.4%)
 Giant cell3 (3.6%)
 Mixed7 (7.2%)
Type of specimen
 Primary51 (53.0%)
 Recurrent30 (31.3%)
 Metastasis15 (15.7%)
Primary site
 Distal femur44 (45.8%)
 Proximal tibia18 (18.7%)
 Proximal humerus14 (14.6%)
 Pelvis12 (12.5%)
 Foot3 (3.2%)
 Spine2 (2%)
 Head3 (3.2%)
Metastasis at diagnosis
 Present24 (25.0%)
 Absent72 (75.0%)
Huvos grade
 Grade I12 (12.7%)
 Grade II23 (23.6%)
 Grade III23 (23.6%)
 Grade IV10 (10.9%)
 Not assessed28 (29.1%)