Table 1.
Pathological and clinical parameters of the enrolled participants.
| Characteristics | Resectable OS (n=82) | Unresectable OS (n=56) |
|---|---|---|
| Age (years) | 22.8±9.7 | 22.9±9.4 |
| Gender | ||
| Male | 52 | 21 |
| Female | 30 | 35 |
| Tumor location | ||
| Tibia/femur | 58 | 45 |
| Elsewhere | 24 | 11 |
| Tumor stage | ||
| T1 | 49 | 17 |
| T2 | 26 | 32 |
| T3 | 7 | 7 |
| Histologic grade | ||
| G1 | 25 | 17 |
| G2 | 26 | 18 |
| G3 | 31 | 21 |
| Number of metastatic sites | ||
| 0 | 69 | 10 |
| 1 | 9 | 21 |
| ≥2 | 4 | 25 |
| Metastatic location | ||
| Lung | 7 | 18 |
| Other sites | 2 | 6 |
| Lung and other sites | 4 | 22 |
| Previous surgery | 9 | 44 |
| Previous chemotherapy | 12 | 32 |
| Previous radiotherapy | 7 | 15 |
| miR-125b in plasma | 0.97±0.55 | 0.50±0.25 |
Note: OS, osteosarcoma.