Epidemiology of Community-Associated Clostridium difficile Infection, 2009 Through 2011

dc.contributor.authorChitnis, Amit S.
dc.contributor.authorHolzbauer, Stacy M.
dc.contributor.authorBelflower, Ruth M.
dc.contributor.authorWinston, Lisa G.
dc.contributor.authorBamberg, Wendy M.
dc.contributor.authorLyons, Carol
dc.contributor.authorFarley, Monica M.
dc.contributor.authorDumyati, Ghinwa K.
dc.contributor.authorWilson, Lucy E.
dc.contributor.authorBeldavs, Zintars G.
dc.contributor.authorDunn, John R.
dc.contributor.authorGould, L. Hannah
dc.contributor.authorMacCannell, Duncan R.
dc.contributor.authorGerding, Dale N.
dc.contributor.authorMcDonald, L. Clifford
dc.contributor.authorLessa, Fernanda C.
dc.date.accessioned2023-08-03T21:55:49Z
dc.date.available2023-08-03T21:55:49Z
dc.date.issued2013-07-22
dc.description.abstractImportance Clostridium difficile infection (CDI) has been increasingly reported among healthy individuals in the community. Recent data suggest that community-associated CDI represents one-third of all C difficile cases. The epidemiology and potential sources of C difficile in the community are not fully understood. Objectives To determine epidemiological and clinical characteristics of community-associated CDI and to explore potential sources of C difficile acquisition in the community. Design and Setting Active population-based and laboratory-based CDI surveillance in 8 US states. Participants Medical records were reviewed and interviews performed to assess outpatient, household, and food exposures among patients with community-associated CDI (ie, toxin or molecular assay positive for C difficile and no overnight stay in a health care facility within 12 weeks). Molecular characterization of C difficile isolates was performed. Outpatient health care exposure in the prior 12 weeks among patients with community-associated CDI was a priori categorized into the following 3 levels: no exposure, low-level exposure (ie, outpatient visit with physician or dentist), or high-level exposure (ie, surgery, dialysis, emergency or urgent care visit, inpatient care with no overnight stay, or health care personnel with direct patient care). Main Outcomes and Measures Prevalence of outpatient health care exposure among patients with community-associated CDI and identification of potential sources of C difficile by level of outpatient health care exposure. Results Of 984 patients with community-associated CDI, 353 (35.9%) did not receive antibiotics, 177 (18.0%) had no outpatient health care exposure, and 400 (40.7%) had low-level outpatient health care exposure. Thirty-one percent of patients without antibiotic exposure received proton pump inhibitors. Patients having CDI with no or low-level outpatient health care exposure were more likely to be exposed to infants younger than 1 year (P = .04) and to household members with active CDI (P = .05) compared with those having high-level outpatient health care exposure. No association between food exposure or animal exposure and level of outpatient health care exposure was observed. North American pulsed-field gel electrophoresis (NAP) 1 was the most common (21.7%) strain isolated; NAP7 and NAP8 were uncommon (6.7%). Conclusions and Relevance Most patients with community-associated CDI had recent outpatient health care exposure, and up to 36% would not be prevented by reduction of antibiotic use only. Our data support evaluation of additional strategies, including further examination of C difficile transmission in outpatient and household settings and reduction of proton pump inhibitor use.en_US
dc.description.sponsorshipThis work was funded by the Emerging Infections Program Cooperative Agreement between study sites and the Centers for Disease Control and Prevention under the following grants: U50CK000201 (California), U50CK000194 (Colorado), U50CK000195 (Connecticut), U50CK000196 (Georgia), U50CK000203 (Maryland), U50CK000204 (Minnesota), U50CK000199 (New York), and U50CK000198 (Tennessee).en_US
dc.description.urihttps://jamanetwork.com/journals/jamainternalmedicine/article-abstract/1697791en_US
dc.format.extent9 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2plgx-d0zx
dc.identifier.citationChitnis AS, Holzbauer SM, Belflower RM, et al. Epidemiology of Community-Associated Clostridium difficile Infection, 2009 Through 2011. JAMA Intern Med. 2013;173(14):1359–1367. doi:10.1001/jamainternmed.2013.7056en_US
dc.identifier.urihttps://doi.org/10.1001/jamainternmed.2013.7056
dc.identifier.urihttp://hdl.handle.net/11603/29081
dc.language.isoen_USen_US
dc.publisherAMAen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Emergency Health Services Department Collection
dc.relation.ispartofA. All Hilltop Institute (UMBC) Works
dc.relation.ispartofUMBC School of Public Policy
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleEpidemiology of Community-Associated Clostridium difficile Infection, 2009 Through 2011en_US
dc.typeTexten_US

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