Cannon RB, et al. - From 2004 to 2013, 1,142 candidates in the National Cancer Database (NCDB) were examined to study the role of postoperative radiotherapy (PORT) in improving overall survival (OS) in adult head and neck (H&N) sarcomas with a positive margin and to describe the alterations in its use. The following factors were noted in relation to greater utilization of PORT: having insurance, salivary gland primary site, high-risk histology, poor differentiation, and a macroscopic positive margin. A correlation between treatment with PORT and an improved 5-year OS for all subjects with a positive margin (57% vs 48%), both microscopic (57% vs 49%) and macroscopic (57% vs 41%). Treatment at a community-based facility was recorded as a single independent predictor for decreased OS while increased utilization of PORT and improved survival outcomes was associated with treatment at an academic/research cancer site.