Interobserver and intraobserver reliability of the Rome II criteria in children

Miguel Saps1, Carlo Di Lorenzo

  • 1Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.

Insights

The pediatric Rome II criteria for diagnosing functional gastrointestinal disorders show low interobserver reliability among specialists and trainees. Further validation is needed to ensure accurate diagnosis in children.

Area of Science:

  • Pediatric Gastroenterology
  • Diagnostic Criteria Reliability

Background:

  • Functional gastrointestinal disorders are prevalent in children.
  • The pediatric Rome II criteria are proposed for diagnosing these conditions.
  • Previous studies show high interobserver reliability for DSM-IV criteria, but Rome II reliability in children is unassessed.

Purpose of the Study:

  • To evaluate the interobserver reliability of the pediatric Rome II criteria.
  • To assess the diagnostic consistency of Rome II criteria among pediatric gastroenterologists and fellows.

Main Methods:

  • Twenty clinical vignettes were provided to 10 pediatric gastroenterologists and 10 fellows.
  • Raters used the Rome II criteria to select diagnoses for each vignette.
  • Intraobserver reliability was assessed by re-evaluating vignettes after 4 months.

Main Results:

  • Low interobserver agreement was found, with kappa coefficients ranging from 0.37 (specialists) to 0.41 (trainees).
  • Reliability was particularly low for constipation (k=0.2) and pain (k=0.3) subgroups.
  • Intraobserver agreement was higher, with a kappa coefficient of 0.63.

Conclusions:

  • The interobserver reliability of the pediatric Rome II criteria is low among pediatric gastroenterologists and fellows.
  • These findings suggest that further validation of the Rome II criteria is necessary for reliable pediatric functional gastrointestinal disorder diagnosis.
Abstract