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Clinical Research|Articles in Press

Spinal Cord Stimulator Inequities Within the US Military Health System

  • Ysehak Wondwossen
    Affiliations
    School of Medicine, Uniformed Services University, Bethesda, MD, USA
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  • Michael S. Patzkowski
    Affiliations
    Department of Anesthesiology, Brooke Army Medical Center, Fort Sam Houston, TX, USA

    Department of Anesthesiology, Uniformed Services University, Bethesda, MD, USA
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  • Maxwell Y. Amoako
    Affiliations
    Enterprise Intelligence and Data Solutions program office, Program Executive Office, Defense Healthcare Management Systems, San Antonio, TX, USA

    Defense and Veterans Center for Integrative Pain Management, Department of Anesthesiology, Uniformed Services University, Bethesda, MD, USA

    Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, USA
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  • Bryan K. Lawson
    Affiliations
    Department of Orthopedic Surgery, Brooke Army Medical Center, Fort Sam Houston, TX, USA
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  • Alexander G. Velosky
    Affiliations
    Enterprise Intelligence and Data Solutions program office, Program Executive Office, Defense Healthcare Management Systems, San Antonio, TX, USA

    Defense and Veterans Center for Integrative Pain Management, Department of Anesthesiology, Uniformed Services University, Bethesda, MD, USA

    Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD, USA
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  • Adam T. Soto
    Affiliations
    Department of Anesthesiology, Uniformed Services University, Bethesda, MD, USA

    Department of Anesthesiology, Tripler Army Medical Center, Honolulu, HI, USA
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  • Krista B. Highland
    Correspondence
    Address correspondence to: Krista B. Highland, PhD, Department of Anesthesiology, Uniformed Services University, 4301 Jones Bridge Rd, Bethesda, MD 20814, USA.
    Affiliations
    Department of Anesthesiology, Uniformed Services University, Bethesda, MD, USA
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      Abstract

      Objectives

      Although studies have described inequities in spinal cord stimulation (SCS) receipt, there is a lack of information to inform system-level changes to support health care equity. This study evaluated whether Black patients exhaust more treatment options than do White patients, before receiving SCS.

      Materials and Methods

      This retrospective cohort study included claims data of Black and non-Latinx White patients who were active-duty service members or military retirees who received a persistent spinal pain syndrome (PSPS) diagnosis associated with back surgery within the US Military Health System, January 2017 to January 2020 (N = 8753). A generalized linear model examined predictors of SCS receipt within two years of diagnosis, including the interaction between race and number of pain-treatment types received.

      Results

      In the generalized linear model, Black patients (10.3% [8.7%, 12.0%]) were less likely to receive SCS than were White patients (13.6% [12.7%, 14.6%]) The interaction term was significant; White patients who received zero to three different types of treatments were more likely to receive SCS than were Black patients who received zero to three treatments, whereas Black and White patients who received >three treatments had similar likelihoods of receiving a SCS.

      Conclusions

      In a health care system with intended universal access, White patients diagnosed with PSPS tried fewer treatment types before receiving SCS, whereas the number of treatment types tried was not significantly related to SCS receipt in Black patients. Overall, Black patients received SCS less often than did White patients. Findings indicate the need for structured referral pathways, provider evaluation on equity metrics, and top-down support.

      Graphical abstract

      Keywords

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