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Epidemiology and Risk Factors for Clostridium difficile Infection in Children

Sandora, Thomas J. MD, MPH*†; Fung, Monica BA‡; Flaherty, Kathleen MT, CIC§; Helsing, Laura MPH§; Scanlon, Patricia RN, MPH, CIC§; Potter-Bynoe, Gail BS, CIC§; Gidengil, Courtney A. MD, MPH*¶; Lee, Grace M. MD, MPH*†∥

Pediatric Infectious Disease Journal: July 2011 - Volume 30 - Issue 7 - pp 580-584
doi: 10.1097/INF.0b013e31820bfb29
Original Studies

Background: Pediatric Clostridium difficile infection (CDI)-related hospitalizations are increasing. We sought to describe the epidemiology of pediatric CDI at a quaternary care hospital.

Methods: Nested case-control study within a cohort of children <18 years tested for C. difficile between January and August 2008. The study included patients who were ≥1 year with a positive test and diarrhea; those without diarrhea (ie, presumed colonization) were excluded. Two unmatched controls per case were randomly selected from patients ≥1 year with a negative test. Potential predictors of CDI included age, gender, comorbidities, prior hospitalization, receipt of C. difficile-active antibiotics in the prior 24 hours, and recent (≤4 weeks) exposure to antibiotics or acid-blocking medications. Multivariate logistic regression models were created to identify independent predictors of CDI.

Results: Of 1891 tests performed, 263 (14%) were positive in 181 children. Ninety-five patients ≥1 year with CDI were compared with 238 controls. In multivariate analyses, predictors of CDI included solid organ transplant (odds ratio [OR], 8.09; 95% confidence interval [CI], 2.10–31.12), lack of prior hospitalization (OR, 8.43; 95% CI, 4.39–16.20), presence of gastrostomy or jejunostomy (G or J) tube (OR, 3.32; 95% CI 1.71–6.42), and receipt of fluoroquinolones (OR, 17.04; 95% CI, 5.86–49.54) or nonquinolone antibiotics (OR, 2.23; 95% CI, 1.18–4.20) in the past 4 weeks. Receipt of C. difficile-active antibiotics within 24 hours before testing was associated with a lower odds of CDI (OR, 0.22; 95% CI, 0.09–0.58).

Conclusions: Recent antibiotic exposure and certain comorbid conditions (solid organ transplant, presence of a gastrostomy or jejunostomy tube) were associated with CDI. Diagnostic testing has less utility in patients being treated with C. difficile-active antibiotics.

From the *Division of Infectious Diseases, Children's Hospital Boston, Boston, MA; †Departments of Medicine and Laboratory Medicine, Children's Hospital Boston, Boston MA; ‡Harvard Medical School, Boston, MA; §Department of Infection Prevention and Control, Children's Hospital Boston, Boston, MA; ¶RAND Corporation, Boston, MA; and ∥Department of Population Medicine, Center for Child Health Care Studies, Harvard Pilgrim Health Care Institute & Harvard Medical School, Boston, MA.

Accepted for publication December 16, 2010.

Address for correspondence: Thomas J. Sandora, MD, MPH, Division of Infectious Diseases, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02115. E-mail: thomas.sandora@childrens.harvard.edu.

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© 2011 by Lippincott Williams & Wilkins, Inc.