Health Services Research & Development

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Kumar A, Resnik L, Karmarkar A, Freburger J, Adhikari D, Mor V, Gozalo P. Use of Hospital-Based Rehabilitation Services and Hospital Readmission Following Ischemic Stroke in the United States. Archives of physical medicine and rehabilitation. 2019 Jul 1; 100(7):1218-1225.
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Abstract: OBJECTIVE: To examine the association between hospital-based rehabilitation service use and all-cause 30-day hospital readmission among patients with ischemic stroke. DESIGN: Secondary analysis of inpatient Medicare claims data using Standard Analytical Files. SETTING: Acute hospitals across the United States. PARTICIPANTS: From nationwide data, Medicare fee-for-service beneficiaries (N=88,826) aged 66 years or older hospitalized for ischemic stroke between January to November 2010. INTERVENTIONS: Hospital-based rehabilitation services were quantified using Medicare inpatient claims revenue center codes for evaluation (occupational therapy [OT] and physical therapy [PT]), as well as the number of therapy units delivered. Therapy minutes for both OT and PT services were categorized into none, low, medium, and high. MAIN OUTCOME MEASURES: All-cause 30-day hospital readmission. A generalized linear mixed model was used to examine the effect of hospital-based rehabilitation services on 30-day hospital readmission, after adjusting for patient and hospital characteristics. RESULTS: In fully adjusted models, compared to patients who received no PT, we observed a monotonic inverse relationship between the amount of PT and hospital readmission. For low PT (30 minutes), the odds ratio (OR) was 0.90 (95% confidence interval [CI], 0.83-0.96). For medium PT (>30 to =75 minutes), the OR was 0.89 (95% CI, 0.82-0.95). For high PT (>75 minutes), the OR was 0.86 (95% CI, 0.80-0.93). CONCLUSION: Hospital-based PT services were associated with lower risk of 30-day hospital readmission in patients with ischemic stroke.