Facility type and it's impact on survival in Ewing's sarcoma: An NCDB analysis.

e23505 Background: Previous studies have reported a significant association between facility type and survival in cancer patients. This study aimed to investigate the impact of treatment facility type on overall survival for Ewing’s Sarcoma. A secondary objective was to identify differences in distribution of demographic variables between facility types. Methods: The National Cancer Database (NCDB) was used to identify patients diagnosed with Ewing’s sarcoma from 2004 to 2018. Four facility types were identified: Academic/Research Programs, Community Cancer Programs, Comprehensive Community Center Programs, and Integrated Network Cancer Programs. Descriptive statistics and Kaplan Meier curves were used to measure survival in these patients and Chi-square was used to evaluate differences in demographics. Data was analyzed using SPSS and statistical significance was set at α = 0.05. Results: Of 269 patients queried, 49% were treated at an academic facility. Academic Programs had the longest median survival of 54 months; Community Cancer Programs had the shortest median survival of 9 months. Statistically significant survival differences were found between all facility types on log-rank comparison (p < 0.050), except for survival between Integrated Network and Community Cancer Programs (p = 0.162). Academic Programs had the highest overall survival when compared to Community Cancer Programs (p = 0.000), Comprehensive Community Cancer Programs (p = 0.026), and Integrated Cancer Networks p = (0.003). Chi-Square analysis revealed an association between facility type and cancer stage at diagnosis (p = 0.044) as well as between facility type and primary payer status (p = 0.026). Notably, 58% of patients treated at Community Programs presented with stage IV disease and 41% were insured by Medicare. Additional log-rank comparisons and Kaplan Meier curves showed private insurance was associated with significantly higher survival compared with Medicaid (p = 0.043), Medicare (p = 0.001) and uninsured patients (p = 0.010). Patients treated at Comprehensive Community (70%) and Academic Programs (67%) had the highest proportion of patients with private insurance. Conclusions: This study showed that Ewing Sarcoma patients treated in an Academic/Research program facility experienced increased survival compared with other facility types. Patients treated at Community Cancer Programs were more likely to present with stage IV disease and were more likely to be on Medicare. Future studies may investigate additional factors that influence potential barriers to care for Ewing Sarcoma patients.[Table: see text]