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Cost-Effectiveness of High-intensity Training vs Conventional Therapy for Individuals With Subacute Stroke

  • T. George Hornby
    Correspondence
    Corresponding author T. George Hornby, PhD, PT, Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, 4141 Shore Dr, Indianapolis, IN 46254.
    Affiliations
    Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Indianapolis, IN

    Rehabilitation Hospital of Indiana, Indianapolis, IN

    Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL
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  • Miriam R. Rafferty
    Affiliations
    Department of Physical Medicine and Rehabilitation, Northwestern University Feinberg School of Medicine, Chicago, IL

    Shirley Ryan AbilityLab, Chicago, IL
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  • Daniel Pinto
    Affiliations
    Department of Physical Therapy, Marquette University, Milwaukee, WI
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  • Dustin French
    Affiliations
    Department of Psychiatry and Behavioral Science, Northwestern University Feinberg School of Medicine, Chicago, IL

    Department of Ophthalmology, Northwestern University Feinberg School of Medicine; Chicago, IL

    Center of Innovation for Complex Chronic Healthcare, Edward Hines Jr Veterans Administration Hospital, Hines, IL
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  • Neil Jordan
    Affiliations
    Department of Psychiatry and Behavioral Science, Northwestern University Feinberg School of Medicine, Chicago, IL

    Center of Innovation for Complex Chronic Healthcare, Edward Hines Jr Veterans Administration Hospital, Hines, IL
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      Abstract

      Objective

      This investigation estimated the incremental cost-effectiveness of high-intensity training (HIT) compared with conventional physical therapy in individuals with subacute stroke, based on the additional personnel required to deliver the therapy.

      Design

      Secondary analysis from a pilot study and subsequent randomized controlled trial.

      Setting

      Outpatient laboratory setting.

      Participants

      Data were collected from individuals with locomotor impairments 1-6 months poststroke (N=44) who participated in HIT (n=27) or conventional physical therapy (n=17).

      Interventions

      Individuals performing HIT practiced walking tasks in variable contexts (stairs, overground, treadmill) while targeting up to 80% maximum heart rate reserve. Individuals performing conventional therapy practiced impairment-based and functional tasks at lower intensities (<40% heart rate reserve).

      Main Outcome Measures

      Costs were assessed based on personnel use with availability of similar equipment. Incremental cost-effectiveness ratios (ICERs) and cost-effectiveness acceptability curves were calculated for quality-adjusted life years (QALYs) derived from the Medical Outcomes Short Form-36 questionnaire and gains in self-selected speeds (SSSs).

      Results

      Personnel costs were higher after HIT (mean, $1420±234) vs conventional therapy (mean, $1111±219), although between-group differences in QALYs (0.05 QALYs; 95% confidence interval [CI], 0.0-0.10 QALYs) and SSS (0.20 m/s; 95% CI, 0.05-0.35 m/s) favored HIT. ICERs were $6180 (95% CI, −$96,364 to $123,211) per QALY and $155 (95% CI, 38-242) for a 0.1 m/s gain in SSS.

      Conclusions

      Additional personnel to support HIT are relatively inexpensive but can add substantial effectiveness to subacute rehabilitation. Future research should evaluate patient factors that increase the likelihood of improvement to maximize the cost-effectiveness of treatment post stroke.

      Keywords

      List of abbreviations:

      CEA (cost-effectiveness analysis), CI (confidence interval), CONV (conventional), HIT (high-intensity training), ICER (incremental cost-effectiveness ratio), QALY (quality-adjusted life year), RCT (randomized controlled trial), SF-36 (Medical Outcomes Survey Short Form-36), SF-6D (Short Form-6 dimension), SSS (self-selected speed), US (United States), VIEWS (Variable Intensive Early Walking Poststroke)
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