Prevalence of Clostridium difficile infection presenting to US EDs.

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Prevalence of Clostridium difficile infection presenting to US EDs.

Am J Emerg Med. 2014 Nov 26;

Authors: Smith AM, Wuerth BA, Wiemken TL, Arnold FW

OBJECTIVE: The objective of the study is to determine the prevalence of Clostridium difficile infection (CDI) presenting to emergency departments (EDs) in the United States. Secondary objectives included defining the burden of CDI.
METHODS: This is a retrospective, observational cohort study of 2006-2010 Nationwide Emergency Department Sample database of 980 US hospital EDs in 29 states. Prevalence, mortality rate, length of stay, hospital charges, and endemicity were measured.
RESULTS: A total of 474513 patients with CDI-related ED visits were identified. From 2006 to 2010, the prevalence of CDI increased from 26.2 to 33.1 per 100000 population (P < .001). The number of CDI-related ED cases increased 26.1% (P < .001) over the study period: 18.6% from 2006 to 2007 (P < .001), 4.3% from 2007 to 2008 (P = .46), 1.8% from 2008 to 2009 (P = .73), and 0.13% from 2009 to 2010 (P = .95). Emergency department visits occurred more frequently with individuals 85 years or older (relative risk [RR], 13.74; P < .001), females (RR, 1.77; P < .001) and in the northeast United States (RR, 1.42; P < .001). From 2009 to 2010, the mortality rate decreased 17.9% (P = .01).
CONCLUSIONS: The prevalence of CDI presenting to EDs increased each year from 2006 to 2010; however, the rate of increase slowed from each year to the next. The mortality rate increased from 2006 to 2009 and decreased significantly from 2009 to 2010. C difficile infection visits presenting to EDs occurred more frequently with older individuals, females, and in the northeast.

PMID: 25488337 [PubMed - as supplied by publisher]

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