Louise Woon Theng Lo1, Yanling Xu2,3, Tet Sen Howe2, Joyce Suang Bee Koh2, Ngai Nung Lo2, Youheng Ou Yang2. 1. Department of Orthopaedic Surgery, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore. louise_lo@rocketmail.com. 2. Department of Orthopaedic Surgery, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore. 3. Monash School of Medicine, Clayton, Australia.
Abstract
End stage renal disease (ESRD) is an independent risk factor for the development of hip fractures and is associated with a higher mortality and complication rates. As these patients significantly skew healthcare financing in a bundled care payment (BCP) program, a risk stratified approach to BCPs could be done to take into account the difference in resources required. INTRODUCTION: End stage renal disease (ESRD) is an independent risk factor for the development of hip fractures and is associated with a higher mortality and complication rate. Hip fracture patients with ESRD may significantly skew healthcare financing in a bundled care payment (BCP) program. MATERIALS AND METHODS: ESRD patients undergoing hip fracture surgery from June 2007 to June 2012 within a tertiary hospital in Singapore were identified and matched to two other controls without ESRD based on secondary features of sex, age, fracture type, and surgery performed. Data was collected for American Society of Anesthesiologist (ASA) score, duration of surgery (DOS), length of stay (LOS), 30-day and 1-year mortality, and the presence of 10 other comorbidities: diabetes mellitus (DM), hypertension (HTN), hyperlipidemia (HLD), ischemic heart disease (IHD), arrhythmia (ARR), cerebrovascular disease (CVA), dementia (DEM), asthma (ASTH), peripheral vascular disease (PVD), and anemia (ANE) from electronic medical records. Costs were retrieved from the gross acute hospitalization bill. RESULTS: Forty-one ESRD patients were successfully matched with 82 controls. Patients with ESRD had higher ASA scores (3 vs 2, p = 0.0001), had 75% higher LOS (21 vs 12 days, p < 0.0001), were associated with 67% higher healthcare expenditure (median $20542 vs $12236, p < 0.0001), and 1-year mortality (OR: 19.6, p < 0.0001). ESRD patients had an average of 4.1 comorbidities per patient compared to 1.84 in the control group. CONCLUSION: ESRD is an outsized factor on the outcome of hip fracture patients who have markedly higher and more variable healthcare utilization.
End stage renal disease (ESRD) is an independent risk factor for the development of hip fractures and is associated with a higher mortality and complication rates. As these patients significantly skew healthcare financing in a bundled care payment (BCP) program, a risk stratified approach to BCPs could be done to take into account the difference in resources required. INTRODUCTION: End stage renal disease (ESRD) is an independent risk factor for the development of hip fractures and is associated with a higher mortality and complication rate. Hip fracture patients with ESRD may significantly skew healthcare financing in a bundled care payment (BCP) program. MATERIALS AND METHODS: ESRD patients undergoing hip fracture surgery from June 2007 to June 2012 within a tertiary hospital in Singapore were identified and matched to two other controls without ESRD based on secondary features of sex, age, fracture type, and surgery performed. Data was collected for American Society of Anesthesiologist (ASA) score, duration of surgery (DOS), length of stay (LOS), 30-day and 1-year mortality, and the presence of 10 other comorbidities: diabetes mellitus (DM), hypertension (HTN), hyperlipidemia (HLD), ischemic heart disease (IHD), arrhythmia (ARR), cerebrovascular disease (CVA), dementia (DEM), asthma (ASTH), peripheral vascular disease (PVD), and anemia (ANE) from electronic medical records. Costs were retrieved from the gross acute hospitalization bill. RESULTS: Forty-one ESRD patients were successfully matched with 82 controls. Patients with ESRD had higher ASA scores (3 vs 2, p = 0.0001), had 75% higher LOS (21 vs 12 days, p < 0.0001), were associated with 67% higher healthcare expenditure (median $20542 vs $12236, p < 0.0001), and 1-year mortality (OR: 19.6, p < 0.0001). ESRD patients had an average of 4.1 comorbidities per patient compared to 1.84 in the control group. CONCLUSION: ESRD is an outsized factor on the outcome of hip fracture patients who have markedly higher and more variable healthcare utilization.
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