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Outpatient Rehabilitation Utilization After Major Limb Loss in Adults Receiving Care in the Military Health System
Rebecca N Schulz1, Kalyn C Jannace1, Daniel B Cooper1
1Department of Physical Medicine and Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD; The Center for Rehabilitation Sciences Research, Uniformed Services University of Health Sciences, Bethesda, MD; The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD.
Objective:
To investigate exposures associated with outpatient rehabilitation encounters among Military Health System (MHS) beneficiaries with major limb loss.
Design:
Retrospective, cohort study.
Setting:
American military treatment facilities and civilian health care facilities that accept TRICARE benefits.
Participants:
Adult MHS beneficiaries with major limb amputation(s) acquired between January 2001 and September 2017 (N=5161).
Interventions:
Not applicable.
Main Outcome Measures:
This exploratory analysis investigated associations between outpatient rehabilitation care and demographic and amputation characteristics in MHS beneficiaries with major limb loss.
Results:
Most beneficiaries were aged 55-64 (36%), male (73%) and retirees/dependents (60%) with enlisted sponsor rank (88%) and single limb loss (89%). The active/reserve beneficiaries were younger, majority male, and more likely to be diagnosed with incident behavioral health conditions. Unadjusted negative binomial regression models revealed increased rates of outpatient rehabilitation encounters in active-duty service members (ADSMs) than in retirees/dependents (rate ratio, 10.02; 95% confidence interval, 9.30-10.80). The rate ratios for sex, sponsor rank, limb(s) lost, incident behavioral health condition, incident traumatic brain injury, incident posttraumatic stress disorder, and outpatient care setting were attenuated after stratification by beneficiary category. Enlisted ADSMs had increased rates of outpatient rehabilitation encounter days compared with officers, whereas retirees/dependents with enlisted sponsors had decreased than those with officer sponsors. ADSMs who accessed outpatient care in direct and private care settings demonstrated high rates of outpatient rehabilitation encounters compared with those who only sought care from private care settings (rate ratio, 4.60; 95% confidence interval, 2.95-6.81).
Conclusions:
This study suggests that MHS beneficiaries with major limb loss use outpatient rehabilitation services differently, based on active/reserve duty or retiree/dependent status. This study is the first of its kind to quantify outpatient rehabilitation utilization for military beneficiaries with all-cause major limb loss and may inform MHS policymakers on the rehabilitation needs for combat- and noncombat-related amputee populations.
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