Research Article
Exploring the Diagnostic Dilemma of Indeterminate Pulmonary Nodules in Patients with Primary Sarcoma of Bone
Table 5
Regression analysis for metastasis-free survival for patients with primary sarcoma of the bone without evident metastatic disease on presentation.
| | Hazard ratio | CI | value |
| Age | | 1.012 | 0.994–1.030 | 0.191 |
| Gender | Male | 1.089 | 0.587–2.020 | 0.787 | Female |
| Diagnosis | Osteosarcoma | 0.739 | 0.354–1.542 | 0.420 | Chondrosarcoma | 0.909 | 0.274–3.011 | 0.876 | Ewing sarcoma | 0.333 | 0.066–1.679 | 0.183 | Chordoma | 1.406 | 0.626–3.161 | 0.409 | Others |
| Anatomic location | Lower extremity | 0.366 | 0.123–1.091 | 0.071 | Upper extremity | 0.870 | 0.286–2.643 | 0.806 | Spine/chest wall | 1.412 | 0.729–2.733 | 0.307 | Pelvis |
| Presence of indeterminant nodules on preoperative CT chest | Yes | 0.981 | 0.493–1.955 | 0.958 | No |
| Development of indeterminant nodules on surveillance CT chest | Yes | 2.008 | 0.997–4.041 | 0.051 | No |
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