Spatial access to primary care providers and colorectal cancer-specific survival in Cook County, Illinois

Cancer Medicine
Vincent L FreemanSara McLafferty

Abstract

Spatial access to primary care has been associated with late-stage and fatal breast cancer, but less is known about its relation to outcomes of other screening-preventable cancers such as colorectal cancer. This population-based retrospective cohort study examined whether spatial access to primary care providers associates with colorectal cancer-specific survival. Approximately 26 600 incident colorectal cancers diagnosed between 2000 and 2008 in adults residing in Cook County, Illinois were identified through the state cancer registry and georeferenced to the census tract of residence at diagnosis. An enhanced two-step floating catchment area method measured tract-level access to primary care physicians (PCPs) in the year of diagnosis using practice locations obtained from the American Medical Association. Vital status and underlying cause of death were determined using the National Death Index. Fine-Gray proportional subdistribution hazard models analyzed the association between tract-level PCP access scores and colorectal cancer-specific survival after accounting for tract-level socioeconomic status, case demographics, tumor characteristics, and other factors. Increased tract-level access to PCPs was associated with a lower ...Continue Reading

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Citations

Sep 16, 2020·International Journal of Health Geographics·Jeon-Young KangShaowen Wang
Nov 3, 2020·Journal of the American College of Radiology : JACR·Marcus J DanielsRyan W England
Jan 29, 2021·International Journal of Environmental Research and Public Health·Anis Kausar GhazaliBenjamin M Taylor
Mar 30, 2021·Travel Behaviour & Society·Mahyar GhorbanzadehMark W Horner

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