Geetanjoli Banerjee1, Andrew R Zullo2, Sarah D Berry3, Yoojin Lee4, Kevin McConeghy5, Doug P Kiel3, Vincent Mor4. 1. Department of Epidemiology, School of Public Health, Brown University, Providence, RI. Electronic address: geetanjoli_banerjee@brown.edu. 2. Department of Health Services, Policy, and Practice, School of Public Health, Brown University, Providence, RI. 3. Hebrew Senior Life, Institute for Aging Research and Beth Israel Deaconess Medical Center, Department of Medicine, Harvard Medical School, Boston, MA. 4. Center for Gerontology Health Care Research, Brown University, Providence, RI. 5. Providence VA Medical Center, Brown University, Providence, RI.
Abstract
INTRODUCTION: Despite high rates of hip fracture among United States (US) nursing home (NH) residents, little is known about geographic variation in hip fracture incidence. We used nationally representative data to identify geographic variation in hip fracture among US NH residents. DESIGN AND SETTING: Retrospective cohort study using Part A claims for a 100% of Medicare enrollees in 15,289 NHs linked to NH minimum data set and Online Survey, Certification, and Reporting databases. PARTICIPANTS: A total of 891,085 long-stay (continuous residence of ≥100 days) NH residents ≥65 years old. MEASUREMENTS: Medicare Part A claims documenting a hip fracture. Mean incidence rates of hip fracture for long-stay NH residents were calculated for each state and US Census Division from 2007 to 2010. RESULTS: The age-, sex-, and race-adjusted incidence rate of hip fracture ranged from 1.49 hip fractures/100 person-years (Hawaii) to 3.60 hip fractures/100 person-years (New Mexico), with a mean of 2.38 (standard deviation 0.43) hip fractures/100 person-years. The mean incidence of hip fracture was 1.7-fold greater in the highest quintile than the lowest. CONCLUSIONS: We observed modest US state and regional variation in hip fracture incidence among long-stay NH residents. Future studies should assess whether state policies or NH characteristics explain the variation.
INTRODUCTION: Despite high rates of hip fracture among United States (US) nursing home (NH) residents, little is known about geographic variation in hip fracture incidence. We used nationally representative data to identify geographic variation in hip fracture among US NH residents. DESIGN AND SETTING: Retrospective cohort study using Part A claims for a 100% of Medicare enrollees in 15,289 NHs linked to NH minimum data set and Online Survey, Certification, and Reporting databases. PARTICIPANTS: A total of 891,085 long-stay (continuous residence of ≥100 days) NH residents ≥65 years old. MEASUREMENTS: Medicare Part A claims documenting a hip fracture. Mean incidence rates of hip fracture for long-stay NH residents were calculated for each state and US Census Division from 2007 to 2010. RESULTS: The age-, sex-, and race-adjusted incidence rate of hip fracture ranged from 1.49 hip fractures/100 person-years (Hawaii) to 3.60 hip fractures/100 person-years (New Mexico), with a mean of 2.38 (standard deviation 0.43) hip fractures/100 person-years. The mean incidence of hip fracture was 1.7-fold greater in the highest quintile than the lowest. CONCLUSIONS: We observed modest US state and regional variation in hip fracture incidence among long-stay NH residents. Future studies should assess whether state policies or NH characteristics explain the variation.
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