BACKGROUND: Ewing sarcoma (ES) is a malignancy of bone and soft tissue in children and adults. Previous registry-based studies indicate that Latino patients with ES have inferior outcomes compared to non-Latino patients, though an etiology for this difference could not be identified. To explore possible differences that might underlie this disparity, we conducted a retrospective study to compare clinical characteristics, tumor features, healthcare access, and treatment outcomes between Latino and non-Latino patients with ES. METHODS: Primary data for 218 ES patients treated at two academic medical centers between 1980 and 2010 were collected. Categorical data were compared using Fisher exact tests; Wilcoxon rank-sum tests were used for continuous variables. Survival was estimated using Kaplan-Meier analysis and compared using log-rank testing. RESULTS: Latino patients were diagnosed at a younger age (P = 0.014). All other clinical and histological data were similar between groups, including radiologic and histologic response to neoadjuvant chemotherapy. Latino patients had lower socioeconomic status (P = 0.001), were less likely to have insurance (P = 0.001), and were more likely to present to the emergency room at onset of symptoms (P = 0.031) rather than to primary care physicians. Five-year event free survival (EFS) and overall survival (OS) were similar between Latino and non-Latino patients (EFS: 60.5% vs. 50.9% P = 0.37; OS: 77.6% vs. 68.6% P = 0.54). CONCLUSION: Latino patients with ES present at a younger age, and have evidence of impaired access to healthcare. Response to initial therapy appears similar between Latino and non-Latino patients.
BACKGROUND:Ewing sarcoma (ES) is a malignancy of bone and soft tissue in children and adults. Previous registry-based studies indicate that Latino patients with ES have inferior outcomes compared to non-Latino patients, though an etiology for this difference could not be identified. To explore possible differences that might underlie this disparity, we conducted a retrospective study to compare clinical characteristics, tumor features, healthcare access, and treatment outcomes between Latino and non-Latino patients with ES. METHODS: Primary data for 218 ES patients treated at two academic medical centers between 1980 and 2010 were collected. Categorical data were compared using Fisher exact tests; Wilcoxon rank-sum tests were used for continuous variables. Survival was estimated using Kaplan-Meier analysis and compared using log-rank testing. RESULTS: Latino patients were diagnosed at a younger age (P = 0.014). All other clinical and histological data were similar between groups, including radiologic and histologic response to neoadjuvant chemotherapy. Latino patients had lower socioeconomic status (P = 0.001), were less likely to have insurance (P = 0.001), and were more likely to present to the emergency room at onset of symptoms (P = 0.031) rather than to primary care physicians. Five-year event free survival (EFS) and overall survival (OS) were similar between Latino and non-Latino patients (EFS: 60.5% vs. 50.9% P = 0.37; OS: 77.6% vs. 68.6% P = 0.54). CONCLUSION: Latino patients with ES present at a younger age, and have evidence of impaired access to healthcare. Response to initial therapy appears similar between Latino and non-Latino patients.
Authors: Patrick P Lin; Norman Jaffe; Cynthia E Herzog; Colleen M Costelloe; Michael T Deavers; Jeana S Kelly; Shreyaskumar R Patel; John E Madewell; Valerae O Lewis; Christopher P Cannon; Robert S Benjamin; Alan W Yasko Journal: Cancer Date: 2007-02-01 Impact factor: 6.860
Authors: Warren B Sateren; Edward L Trimble; Jeffrey Abrams; Otis Brawley; Nancy Breen; Leslie Ford; Mary McCabe; Richard Kaplan; Malcolm Smith; Richard Ungerleider; Michaele C Christian Journal: J Clin Oncol Date: 2002-04-15 Impact factor: 44.544
Authors: Sally L Glaser; Margaret L Gulley; Christina A Clarke; Theresa H Keegan; Ellen T Chang; Sarah J Shema; Fiona E Craig; Joseph A Digiuseppe; Ronald F Dorfman; Risa B Mann; Hoda Anton-Culver; Richard F Ambinder Journal: Int J Cancer Date: 2008-10-01 Impact factor: 7.396
Authors: O Oberlin; M C Deley; B N Bui; J C Gentet; T Philip; P Terrier; C Carrie; F Mechinaud; C Schmitt; A Babin-Boillettot; J Michon Journal: Br J Cancer Date: 2001-11-30 Impact factor: 7.640