Table 1.
Clinicopathological characteristics in patients with osteosarcoma and controls
| Variable | Cases (n = 120) | Controls (n = 120) | P value |
|---|---|---|---|
| Gender (%) | 0.60 | ||
| Male | 68 (56.7) | 64 (53.3) | |
| Female | 52 (43.3) | 56 (46.7) | |
| Age; mean (SD) year | 23.7 (12.8) | 24.1 (13.0) | 0.81 |
| Enneking stage (%) | |||
| I | 9 (7.5) | NA | |
| II | 56 (46.7) | NA | |
| III | 55 (45.8) | NA | |
| Tumour location (%) | |||
| Extremities | 91 (75.8) | NA | |
| Other | 29 (24.2) | NA | |
| Histological type (%) | |||
| Osteoblastic | 38 (31.6) | NA | |
| Chondroblastic | 41 (34.2) | NA | |
| Fibroblastic | 15 (12.5) | NA | |
| Mixed | 26 (21.7) | NA | |
| Tumour metastasis (%) | |||
| Positive | 55 (45.8) | NA | |
| Negative | 65 (54.2) | NA | |
| Family history of cancer | |||
| Positive | 11 (9.2) | NA | |
| Negative | 109 (90.8) | NA | |
SD standard deviation, NA not applicable