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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 4 of 4 Research Studies DisplayedSmulowitz PB, O'Malley AJ, McWilliams JM
Variation in rates of hospital admission from the emergency department among Medicare patients at the regional, hospital, and physician levels.
Rates of admission from the emergency department (ED) vary widely across regions of the country, hospitals within regions, and physicians within hospitals. The study objective was to determine the extent to which variation in admission decisions was described by differences in admission rates at these 3 levels. The investigators concluded that within-area variation, both across hospitals within a region and across physicians within a hospital, was a more substantial component of observed variation in admission rates from the ED than regional level variation.
AHRQ-funded; HS025408.
Citation: Smulowitz PB, O'Malley AJ, McWilliams JM .
Variation in rates of hospital admission from the emergency department among Medicare patients at the regional, hospital, and physician levels.
Ann Emerg Med 2021 Oct;78(4):474-83. doi: 10.1016/j.annemergmed.2021.03.020..
Keywords: Medicare, Hospitalization, Emergency Department, Practice Patterns
Hua CL, Zhang W, Cornell PY
Characterizing emergency department use in assisted living.
The objective of this observational retrospective cohort study was to examine state variability in all-cause and injury-related emergency department (ED) use among residents in assisted living (AL). Participants were traditional Medicare beneficiaries residing in larger AL communities. Findings showed significant variability among states in all-cause and injury-related ED use among AL residents. Recommendations included the need for a better understanding as to why this variability is occurring in order to prevent avoidable visits to the ED.
AHRQ-funded; T32 HS000011.
Citation: Hua CL, Zhang W, Cornell PY .
Characterizing emergency department use in assisted living.
J Am Med Dir Assoc 2021 Apr;22(4):913-17.e2. doi: 10.1016/j.jamda.2020.05.019..
Keywords: Elderly, Emergency Department, Medicare
Gettel CJ, Canavan ME, D'Onofrio G
Who provides what care? An analysis of clinical focus among the national emergency care workforce.
This study looked at the clinical focus of emergency department (ED) workers using the 2017 Medicare Public Use Files for clinicians receiving reimbursement for emergency care Evaluation & Management (E/M) services for Medicare fee-for-service Part B. Clinicians were categorized as EM physicians, non-EM physicians, and advanced practice providers (APPs). Of the 65,710 unique clinicians providing care, 59.4% were classified as EM physicians, 12.4% as non-EM physicians, and 28.5% as APPs. EM physicians have twice as much clinician median focus in comparison to EM physicians providing emergency care (92.8% vs 45.2) and APPs are focused 100%.
AHRQ-funded; HS023614.
Citation: Gettel CJ, Canavan ME, D'Onofrio G .
Who provides what care? An analysis of clinical focus among the national emergency care workforce.
Am J Emerg Med 2021 Apr;42:228-32. doi: 10.1016/j.ajem.2020.11.069..
Keywords: Emergency Department, Workforce, Provider: Physician, Provider: Clinician, Provider, Medicare
Smulowitz PB, O'Malley AJ, Zaborski L
Variation in emergency department admission rates among Medicare patients: does the physician matter?
Hospitalizations account for the largest share of health care spending. New payment models increasingly encourage health care providers to reduce hospital admissions. Although emergency department (ED) physicians play a major role in the decision to admit a patient, the extent to which admission rates vary among ED physicians even within the same hospital remains poorly understood. In this study the investigators examined physician-level variation in ED admission rates for Medicare patients.
AHRQ-funded; HS025408.
Citation: Smulowitz PB, O'Malley AJ, Zaborski L .
Variation in emergency department admission rates among Medicare patients: does the physician matter?
Health Aff 2021 Feb;40(2):251-57. doi: 10.1377/hlthaff.2020.00670..
Keywords: Emergency Department, Hospitalization, Medicare, Provider: Physician, Provider