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  • Author(s):
    Yujie Hu, Changzhen Wang, Ruiyang Li, Fahui Wang
    Abstract:

    Estimating a massive drive time matrix between locations is a practical but challenging task. The challenges include availability of reliable road network (including traffic) data, programming expertise, and access to high-performance computing resources. This research proposes a method for estimating a nationwide drive time matrix between ZIP code areas in the U.S. - a geographic unit at which many national datasets including health information are compiled and distributed. The method (1) do…

    Date Published:
    2020-06
    Record Visibility:
    Public
  • Author(s):
    Matthew A. Davis, Olga Yakusheva, Haiyin Liu, Joshua Tootoo, Marita G. Titler, Julie P.W. Bynum
    Abstract:

    OBJECTIVES: Chiropractic care is a service that operates outside of the conventional medical system and is reimbursed by Medicare. Our objective was to examine the extent to which accessibility of chiropractic care affects spending on medical spine care among Medicare beneficiaries.

    STUDY DESIGN: Retrospective cohort study that used beneficiary relocation as a quasi-experiment.

    METHODS: We used a combination of national data on provider location and Medicare claims to perform a quasi-experi…

    Date Published:
    2019-08
    Record Visibility:
    Public