Metastasectomy of Pulmonary Metastases from Osteosarcoma: Prognostic Factors and Indication for Repeat Metastasectomy

Figure 3

The Receiver operating characteristics (ROC) curve of total number of resected pulmonary metastases at first metastasectomy for 1-year survival after metastasectomy. The optimal cut-off value is determined to be 3.5, which was associated with the sensitivity and specificity values of 0.90 and 0.85, respectively. The area under the ROC curve value is 0.92.