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Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States

Defining a reliable geographic unit pertaining to cancer care is essential in its assessment, planning, and management. This study aims to delineate and characterize the cancer service areas (CSA) accounting for the presence of major cancer centers in the United States. We used the Medicare enrollme...

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Autores principales: Wang, Changzhen, Wang, Fahui, Onega, Tracy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for Cancer Research 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9981203/
https://www.ncbi.nlm.nih.gov/pubmed/36875712
http://dx.doi.org/10.1158/2767-9764.CRC-22-0099
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author Wang, Changzhen
Wang, Fahui
Onega, Tracy
author_facet Wang, Changzhen
Wang, Fahui
Onega, Tracy
author_sort Wang, Changzhen
collection PubMed
description Defining a reliable geographic unit pertaining to cancer care is essential in its assessment, planning, and management. This study aims to delineate and characterize the cancer service areas (CSA) accounting for the presence of major cancer centers in the United States. We used the Medicare enrollment and claims from January 1, 2014 to September 30, 2015 to build a spatial network from patients with cancer to cancer care facilities that provided inpatient and outpatient care of cancer-directed surgery, chemotherapy, and radiation. After excluding those without clinical care or outside of the United States, we identified 94 NCI-designated and other academic cancer centers from the members of the Association of American Cancer Institutes. By explicitly incorporating existing specialized cancer referral centers, we refined the spatially constrained Leiden method that accounted for spatial adjacency and other constraints to delineate coherent CSAs within which the service volumes were maximal but minimal between them. The derived 110 CSAs had a high mean localization index (LI; 0.83) with a narrow variability (SD = 0.10). The variation of LI across the CSAs was positively associated with population, median household income, and area size, and negatively with travel time. Averagely, patients traveled less and were more likely to receive cancer care within the CSAs anchored by cancer centers than their counterparts without cancer centers. We concluded that CSAs are effective in capturing the local cancer care markets in the United States. They can be used as reliable units for studying cancer care and informing more evidence-based policy. SIGNIFICANCE: Using the most refined network community detection method, we can delineate CSAs in a more robust, systematic, and empirical manner that incorporates existing specialized cancer referral centers. The CSAs can be used as a reliable unit for studying cancer care and informing more evidence-based policy in the United States. The cross-walk tabulation of ZIP code areas, CSAs, and related programs for CSAs delineation are disseminated for public access.
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spelling pubmed-99812032023-03-03 Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States Wang, Changzhen Wang, Fahui Onega, Tracy Cancer Res Commun Research Article Defining a reliable geographic unit pertaining to cancer care is essential in its assessment, planning, and management. This study aims to delineate and characterize the cancer service areas (CSA) accounting for the presence of major cancer centers in the United States. We used the Medicare enrollment and claims from January 1, 2014 to September 30, 2015 to build a spatial network from patients with cancer to cancer care facilities that provided inpatient and outpatient care of cancer-directed surgery, chemotherapy, and radiation. After excluding those without clinical care or outside of the United States, we identified 94 NCI-designated and other academic cancer centers from the members of the Association of American Cancer Institutes. By explicitly incorporating existing specialized cancer referral centers, we refined the spatially constrained Leiden method that accounted for spatial adjacency and other constraints to delineate coherent CSAs within which the service volumes were maximal but minimal between them. The derived 110 CSAs had a high mean localization index (LI; 0.83) with a narrow variability (SD = 0.10). The variation of LI across the CSAs was positively associated with population, median household income, and area size, and negatively with travel time. Averagely, patients traveled less and were more likely to receive cancer care within the CSAs anchored by cancer centers than their counterparts without cancer centers. We concluded that CSAs are effective in capturing the local cancer care markets in the United States. They can be used as reliable units for studying cancer care and informing more evidence-based policy. SIGNIFICANCE: Using the most refined network community detection method, we can delineate CSAs in a more robust, systematic, and empirical manner that incorporates existing specialized cancer referral centers. The CSAs can be used as a reliable unit for studying cancer care and informing more evidence-based policy in the United States. The cross-walk tabulation of ZIP code areas, CSAs, and related programs for CSAs delineation are disseminated for public access. American Association for Cancer Research 2022-05-24 /pmc/articles/PMC9981203/ /pubmed/36875712 http://dx.doi.org/10.1158/2767-9764.CRC-22-0099 Text en © 2022 The Authors; Published by the American Association for Cancer Research https://creativecommons.org/licenses/by/4.0/This open access article is distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.
spellingShingle Research Article
Wang, Changzhen
Wang, Fahui
Onega, Tracy
Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States
title Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States
title_full Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States
title_fullStr Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States
title_full_unstemmed Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States
title_short Delineation of Cancer Service Areas Anchored by Major Cancer Centers in the United States
title_sort delineation of cancer service areas anchored by major cancer centers in the united states
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9981203/
https://www.ncbi.nlm.nih.gov/pubmed/36875712
http://dx.doi.org/10.1158/2767-9764.CRC-22-0099
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