• Bennett H Lane, Peter J Mallow, Maria B Hooker, and Edmond Hooker.
• Department of Emergency Medicine, University of Cincinnati, Cincinnati, OH, USA.
• Am J Emerg Med. 2020 Aug 1; 38 (8): 1576-1581.

BackgroundDemographic shifts and care delivery system evolution affect the number of Emergency Department (ED) visits and associated costs. Recent aggregate trends in ED visit rates and charges between 2010 and 2016 have not been evaluated.MethodsData from the National Emergency Department Sample, comprising approximately 30 million annual patient visits, were used to estimate the ED visit rate and charges per visit from 2010 to 2016. ED visits were grouped into 144 mutually exclusive clinical categories. Visit rates, compound annual growth rates (CAGRs), and per visit charges were estimated.ResultsFrom 2010 to 2016, the number of ED visits increased from 128.97 million to 144.82 million; the cumulative growth was 12.29% and the CAGR was 1.95%, while the population grew at a CAGR of 0.73%. Expressed as a population rate, ED visits per 1000 persons increased from 416.92 in 2010 to 448.19 in 2016 (p value <0.001). The mean charges per visit increased from $2061 (standard deviation $2962) in 2010 to $3516 (standard deviation $2962) in 2016; the CAGR was 9.31% (p value <0.001). Of 144 clinical categories, 140 categories had a CAGR for mean charges per visit of at least 5%.ConclusionThe rate of ED visits per 1000 persons and the mean charge per ED visit increased significantly between 2010 and 2016. Mean charges increased for both high- and low-acuity clinical categories. Visits for the 5 most common clinical categories comprise about 30% of ED visits, and may represent focus areas for increasing the value of ED care.Copyright © 2019 Elsevier Inc. All rights reserved.

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