Clostridium difficile in a pediatric outpatient population

Area of Science:

• Microbiology
• Pediatric Gastroenterology
• Infectious Diseases

Background:

• Clostridium difficile is a known cause of hospital-acquired diarrhea in children.
• The prevalence of C. difficile in outpatient pediatric populations with diarrhea remains largely unestablished.
• Understanding C. difficile carriage in non-hospitalized children is crucial for accurate diagnosis and treatment.

Purpose of the Study:

• To determine the prevalence of Clostridium difficile in outpatient children presenting with diarrhea.
• To compare C. difficile isolation rates between children with diarrhea and age-matched controls without diarrhea.
• To investigate potential risk factors, such as antibiotic exposure, associated with C. difficile isolation in this population.

Main Methods:

• A 1-year prospective study involving 306 outpatient children (2 weeks to 16 years).
• Stool cultures were performed for C. difficile and other bacterial enteric pathogens.
• Patients were categorized into diarrheal and non-diarrheal (control) groups.

Main Results:

• Clostridium difficile was isolated from 7.0% of children with diarrhea and 14.8% of controls.
• Patients positive for C. difficile were significantly younger.
• No significant difference in recent antibiotic exposure was observed between positive and negative cases; C. difficile was rarely found with other pathogens.

Conclusions:

• Clostridium difficile is present in a notable percentage of outpatient children, including those without diarrhea.
• The organism may be a component of normal intestinal flora in children beyond the neonatal period.
• Clinical presentation and antibiotic history did not reliably distinguish C. difficile carriers.