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  • Title: A Medicare Claims Analysis of Racial and Ethnic Disparities in the Access to Radiation Therapy Services.
    Author: Mantz CA, Thaker NG, Deville C, Hubbard A, Pendyala P, Mohideen N, Kavadi V, Winkfield KM.
    Journal: J Racial Ethn Health Disparities; 2023 Apr; 10(2):501-508. PubMed ID: 35064522.
    Abstract:
    PURPOSE: Reduced access and utilization of radiation therapy (RT) is a well-documented healthcare disparity observed among racial and ethnic minority groups in the USA and a contributor to the inferior health outcomes observed among Black, Hispanic, and Native American patient groups. What is less understood are the points during the process of care following RT consultation at which patients either fail to complete their prescribed treatment or encounter delays. Identification of those points where significant differences exist among different patient groups may help identify opportunities to close gaps in the access of clinically indicated RT. METHODS AND MATERIALS: This analysis examines 261,559 RT episodes abstracted from Medicare claims and beneficiary data between 2016 and 2018 to determine rates of treatment initiation following planning and timeliness of treatment completion for different racial groups. RESULTS: Failure to initiate treatment was observed to be 29.3% relatively greater for Black, Hispanic, and Native American patients than for White and Asian patients. Among episodes for which treatment was initiated, Black and Hispanic patients were observed to require a significantly greater number of calendar days (when adjusted for fraction number) for completion than for White, Asian, and Native American patients. CONCLUSIONS: There appears to be a patient cohort for which RT disparities may be more marginal in their effects-allowing for access to consultation and treatment prescription but not for treatment initiation or timely completion of treatment-and may therefore permit effective solutions to help address current differences in cancer outcomes.
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