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  • Title: Racial/ethnic differences in survival among elderly patients with a primary glioblastoma.
    Author: Barnholtz-Sloan JS, Maldonado JL, Williams VL, Curry WT, Rodkey EA, Barker FG, Sloan AE.
    Journal: J Neurooncol; 2007 Nov; 85(2):171-80. PubMed ID: 17530174.
    Abstract:
    BACKGROUND: Few studies have assessed racial/ethnic differences in survival after primary glioblastoma diagnosis. We investigate these differences, incorporating information on White, Hispanics and Asians, as well as White, non-Hispanics and Blacks, among elderly individuals with a primary glioblastoma utilizing the population-based Surveillance, Epidemiology and End Results (SEER) Program-Medicare linked database. METHODS: A total of 1,530 individuals diagnosed > = 66 years of age from 6/1/91 to 12/31/99 in the SEER data were linked with Medicare information from 1/1/91 to 12/31/01. All individuals had Medicare Parts A and B and were non-HMO for 6 months before and 12 months after diagnosis to gather pre-diagnosis co-morbidities and post-diagnosis first course of treatment. Survival differences by race/ethnicity and by race/ethnicity stratified by treatment type and/or median household income were examined using Kaplan-Meier and multivariable Cox proportional hazards models. RESULTS: Significant racial/ethnic differences existed between White, non-Hispanics and Blacks in marital status, income and SEER registry region for the entire US. In analysis limited to the West region, significant racial/ethnic differences existed for income only. Overall there were no differences in survival between White, non-Hispanics and Blacks, however, in analysis limited to the West region, Asians had a lower risk of death compared to White, non-Hispanics [HR = 0.67, 95% CI (0.43, 1.03)]. Asians who had multiple treatments also had a lower risk of death compared to White, non-Hispanics [HR = 0.65, 95% CI (0.41, 1.01)]. CONCLUSIONS: Racial/ethnic differences in survival after primary glioblastoma diagnosis exist and may be partially explained by racial/ethnic differences in treatment and income.
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