• Eric B Schneider, Aparajita Singh, Jennifer Sung, Benjamin Hassid, Shalini Selvarajah, Sandy H Fang, Jonathan E Efron, and Anne O Lidor.
• Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA. Electronic address: eschnei1@jhmi.edu.
• Am. J. Surg. 2015 Aug 1; 210 (2): 404-7.

BackgroundDiverticulitis in admitted inpatients is well reported. This study examined colonic diverticulitis treated in the emergency department (ED).MethodsThe 2010 Nationwide Emergency Department Sample was used to examine relationships among patient age and inpatient admission, surgical intervention, and in-hospital mortality among ED patients with a primary diagnosis of diverticulitis.ResultsOf 310,983 ED visits for primary diverticulitis, 53% resulted in hospitalization and 6% in surgical intervention. Most patients 65+ years old were female (69%), and most were hospitalized (63%). Seven percent of ED patients aged 65+ underwent surgery and .96% died in hospital. Patients aged less than 40 years (13% of all admissions) were mostly male (63%), 42% were hospitalized, 4% underwent surgery, and less than .01% died. Compared with patients aged less than 40 years, those 65+ demonstrated greater odds of admission (odds ratio 1.53, 95% confidence interval 1.43 to 1.64) and surgical intervention (odds ratio 1.45, 95% confidence interval 1.27 to 1.65).ConclusionsHalf of ED patients were hospitalized and 6% of ED visits resulted in colectomy. Fully 13% of ED patients were less than 40 years old. Future studies examining outpatient services may further illuminate the epidemiology of diverticulitis.Copyright © 2015 Elsevier Inc. All rights reserved.

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