Patient vs provider characteristics impacting hospital lengths of stay after total knee or hip arthroplasty |
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Authors: | Styron Joseph F Koroukian Siran M Klika Alison K Barsoum Wael K |
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Affiliation: | ? Department of Epidemiology and Biostatistics, School of Medicine, Wood Building WG-57, Case Western Reserve University, Cleveland, Ohio† Department of Orthopaedic Surgery, Mail Code: A-41, Cleveland, Ohio |
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Abstract: | This study aims to identify whether patient-level or provider-level characteristics are most influential on a patient's length of stay in the acute care hospital. A data set containing a nationally representative sample of inpatient discharge abstracts was used. Multilevel linear regression models were used to evaluate the associations between patient-level and provider-level characteristics on patients' lengths of stay. The target population included 322 894 discharges with a primary procedure code for primary total knee arthroplasty and 193 553 discharges for total hip arthroplasty. The variables associated with the greatest increases in length of stay were a higher comorbidity level among patient level attributes (+17.4%) and low surgeon volume among provider-level characteristics (+18.8%). Provider-level characteristics, particularly provider volume, had a greater impact on length of stay. |
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Keywords: | total knee arthroplasty total hip arthroplasty length of stay national inpatient sample HCUP |
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