Ewing Sarcoma Demonstrates Racial Disparities in Incidence-related and Sex-related Differences in Outcome An Analysis of 1631 Cases From the SEER Database, 1973-2005
Ewing Sarcoma Demonstrates Racial Disparities in Incidence-related and Sex-related Differences in Outcome An Analysis of 1631 Cases From the SEER Database, 1973-2005
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DOI:
10.1002/cncr.24388
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发表时间:
2009-08-01
期刊:
影响因子:
6.2
通讯作者:
Scully, Sean P.
中科院分区:
文献类型:
--
作者:
Jawad, Muhammad U.;Cheung, Michael C.;Scully, Sean P.
BACKGROUND: Previous reports of Ewing sarcoma cohorts suggested that there is a difference in incidence according to racial origin. However, to the authors' knowledge, this finding has never been tested in a population-based database, and the impact of race on clinical outcome and the significance of known risk factors stratified to racial groups have not been reported. METHODS: Patients who had Ewing sarcoma diagnosed between 1973 and 2005 were identified in the Surveillance, Epidemiology, and End Results database. Patient demographic and clinical characteristics; incidence; year of diagnosis; tumor location, tumor size, and disease stage at diagnosis; treatment(s); cause of death; and survival were extracted. Kaplan-Meier, log-rank, and Cox regressions were used to analyze the significance of prognostic factors. RESULTS: Race-specific incidence indicated that Caucasians have the highest incidence (0.155), followed by Asians/Pacific Islanders (0.082), and African Americans (0.017). The difference in incidence between Caucasians and African Americans was 9-fold and significant (P < .001). The incidence of Ewing sarcoma increased over the past 3 decades among Caucasians (P < .05). Survival was not impacted by race. Local disease stage, primary tumor location in the appendicular skeleton, and tumor size