Chih-Ying Li1, Allen Haas2, Kevin T Pritchard3, Amol Karmarkar4, Yong-Fang Kuo5, Kimberly Hreha3, Kenneth J Ottenbacher6. 1. Department of Occupational Therapy, University of Texas Medical Branch, Galveston, TX, USA. Electronic address: chili@utmb.edu. 2. Department of Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX, USA. 3. Division of Rehabilitation Sciences, University of Texas Medical Branch, Galveston, TX, USA. 4. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, VA, USA; Sheltering Arms Institute, 2000 Wilkes Ridge Pl Drive, Richmond, VA, USA. 5. Department of Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX, USA; Sealy Center on Aging, University of Texas Medical Branch, TX, USA. 6. Division of Rehabilitation Sciences, University of Texas Medical Branch, Galveston, TX, USA; Sealy Center on Aging, University of Texas Medical Branch, TX, USA.
Abstract
OBJECTIVE: To examine the association between cocalibrated functional scores across post-acute care settings and the subsequent risk of hospital readmission. DESIGN: Retrospective cohort study. SETTING AND PARTICIPANTS: We analyzed 781,021 fee-for-service Medicare beneficiaries discharged to either inpatient rehabilitation facilities (IRFs), skilled nursing facilities (SNFs), or home health agencies (HHA) after an acute hospital stay for stroke (N = 143,277), lower extremity joint replacements (512,577), and hip/femur fracture (125,167) between January 1, 2013, and August 31, 2014. MEASURES: Functional items from IRF-PAI, MDS, and OASIS were categorized into self-care and mobility domains. We cocalibrated admission functional scores across post-acute settings and divided scores into 4 functional levels using quartiles (Q1-Q4, with Q4 representing the most independent function). The primary outcomes were 30-day and 90-day hospital readmissions (yes/no) after an initial post-acute stay. RESULTS: Patients who were more dependent in self-care and mobility at the initial post-acute setting were significantly more likely to experience hospital readmission [eg, hazard ratios of 30-day readmission in stroke: 1.54 (95% confidence interval [CI] 1.47-1.61), 1.18 (95% CI 1.14-1.23), and 1.12 (95% CI 1.08-1.16) for Q1, Q2 and Q3, compared to Q4]. We found similar results for risk of 90-day hospital readmission across impairment conditions. CONCLUSIONS AND IMPLICATIONS: Patients who were more functionally dependent at the initial post-acute setting had a higher risk to readmit to the hospitals after discharging from the post-acute setting for 30 and 90 days, compared with patients who were more functionally independent. This finding is consistent across impairment conditions and post-acute settings. Future research should determine effective strategies of maintaining and facilitating functional performance across post-acute settings to optimize long-term patient outcomes.
OBJECTIVE: To examine the association between cocalibrated functional scores across post-acute care settings and the subsequent risk of hospital readmission. DESIGN: Retrospective cohort study. SETTING AND PARTICIPANTS: We analyzed 781,021 fee-for-service Medicare beneficiaries discharged to either inpatient rehabilitation facilities (IRFs), skilled nursing facilities (SNFs), or home health agencies (HHA) after an acute hospital stay for stroke (N = 143,277), lower extremity joint replacements (512,577), and hip/femur fracture (125,167) between January 1, 2013, and August 31, 2014. MEASURES: Functional items from IRF-PAI, MDS, and OASIS were categorized into self-care and mobility domains. We cocalibrated admission functional scores across post-acute settings and divided scores into 4 functional levels using quartiles (Q1-Q4, with Q4 representing the most independent function). The primary outcomes were 30-day and 90-day hospital readmissions (yes/no) after an initial post-acute stay. RESULTS: Patients who were more dependent in self-care and mobility at the initial post-acute setting were significantly more likely to experience hospital readmission [eg, hazard ratios of 30-day readmission in stroke: 1.54 (95% confidence interval [CI] 1.47-1.61), 1.18 (95% CI 1.14-1.23), and 1.12 (95% CI 1.08-1.16) for Q1, Q2 and Q3, compared to Q4]. We found similar results for risk of 90-day hospital readmission across impairment conditions. CONCLUSIONS AND IMPLICATIONS: Patients who were more functionally dependent at the initial post-acute setting had a higher risk to readmit to the hospitals after discharging from the post-acute setting for 30 and 90 days, compared with patients who were more functionally independent. This finding is consistent across impairment conditions and post-acute settings. Future research should determine effective strategies of maintaining and facilitating functional performance across post-acute settings to optimize long-term patient outcomes.
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