Fig. 3

Kaplan-Meier curve of overall survival depending on tumour size (a) and grade (b), of patients with non-metastatic soft-tissue sarcoma of the extremities, treated with preoperative radiotherapy. Patients with large tumours (dichotomized around the median volume) have inferior survival to the ones having smaller tumours (p = 0.003). Higher grade is also correlated to inferior overall survival (p = 0.004)