Table 4.
Hazard of recurrence in association with potential risk factors
| Factor | Hazard | 95% confidence interval for | p | |
|---|---|---|---|---|
| Lower | Upper | |||
| Gender | ||||
| Male | 1.000 | |||
| Female | 0.825 | 0.373 | 1.825 | 0.635 |
| Age at diagnosis | ||||
| ≤ 25 years | 1.000 | |||
| 26–50 years | 0.519 | 0.226 | 1.195 | 0.123 |
| ≥ 51 years | 0.190 | 0.043 | 0.844 | 0.029 |
| Location | ||||
| Distal femur | 1.000 | |||
| Proximal femur | 0.000 | 0.000 | 0.987 | |
| Distal tibia | 1.744 | 0.340 | 8.948 | 0.505 |
| Proximal tibia | 0.618 | 0.163 | 2.341 | 0.479 |
| Proximal fibula | 4.897 | 0.505 | 47.439 | 0.170 |
| Distal humerus | 0.000 | 0.000 | 0.994 | |
| Proximal humerus | 3.724 | 0.635 | 21.859 | 0.145 |
| Distal radius | 0.000 | 0.000 | 0.995 | |
| Distal ulna | 1.032 | 0.194 | 5.481 | 0.970 |
| Proximal ulna | 0.000 | 0.000 | 0.992 | |
| Hand | 4.199 | 0.779 | 22.635 | 0.095 |
| Scapula | 0.000 | 0.000 | 0.994 | |
| Spine | 1.375 | 0.250 | 7.546 | 0.714 |
| Sacrum | 0.594 | 0.103 | 3.410 | 0.559 |
| Pelvis | 1.100 | 0.203 | 5.969 | 0.912 |
| Grade (Campanacci) | ||||
| Grade I | 1.000 | |||
| Grade II | 0.679 | 0.072 | 6.438 | 0.736 |
| Grade III | 1.152 | 0.103 | 12.944 | 0.909 |
| Tumor extension | ||||
| T1 | 1.000 | |||
| T2 | 0.833 | 0.205 | 3.380 | 0.789 |
| Pathologic fracture | ||||
| No | 1.000 | |||
| Yes | 0.698 | 0.138 | 3.545 | 0.665 |
| Surgery | ||||
| Wide resection | 1.000 | |||
| Intralesional surgery | 8.711 | 1.063 | 71.415 | 0.042 |
| Adjuvants | ||||
| PMMA + phenol | 1.000 | |||
| Bone grafting + phenol | 3.232 | 1.122 | 9.310 | 0.030 |
| No adjuvants (bone grafting) | 2.862 | 0.908 | 9.022 | 0.073 |