• Jason Kim, Sarah A Smathers, Priya Prasad, Kateri H Leckerman, Susan Coffin, and Theoklis Zaoutis.
• Center for Pediatric Clinical Effectiveness, Children's Hospital of Philadelphia, and Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. kimj@email.chop.edu
• Pediatrics. 2008 Dec 1; 122 (6): 1266-70.

ObjectiveClostridium difficile is the main cause of nosocomial and antibiotic-associated diarrhea in adults. Recently, the incidence and severity of C difficile-associated disease in adults have been increasing. Whether similar phenomena are occurring among children remains unknown. Our study describes the epidemiological features of C difficile-associated disease in hospitalized children.MethodsWe conducted a retrospective cohort study of hospitalized children with C difficile-associated disease at 22 freestanding children's hospitals in the United States, from 2001 to 2006. Cases of C difficile-associated disease were defined as a hospitalized child with a discharge code for C difficile infection, a laboratory billing charge for a C difficile toxin assay, and receipt of antimicrobial therapy for C difficile-associated disease.ResultsWe identified 4895 patients with C difficile-associated disease. Over the study period, the annual incidence of C difficile-associated disease increased from 2.6 to 4.0 cases per 1000 admissions and from 4.4 to 6.5 cases per 10 000 patient-days. The median age of children with C difficile-associated disease was 4 years. Twenty-six percent of patients were <1 year of age. The majority of patients (67%) had underlying chronic medical conditions. The colectomy and all-cause mortality rates among children with C difficile-associated disease did not increase during the study period.ConclusionsThe annual incidence of C difficile-associated disease in hospitalized children increased significantly from 2001 to 2006. However, the rates of colectomy and in-hospital death have not increased in children with C difficile-associated disease as they have among adults. The risk factors and outcomes for children with C difficile-associated disease remain to be defined in future studies.

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