title: Rome II versus Rome III classification of functional gastrointestinal disorders in pediatric chronic abdominal pain.
abstract: OBJECTIVE
  The updated Rome III criteria for pediatric functional gastrointestinal disorders (FGIDs) include new FGID categories and changes to the Rome II criteria for various FGIDs. To our knowledge, the implications of these revisions for patient classification have not been identified. The purpose of this study was to compare classification results using Rome II versus Rome III criteria for FGIDs associated with chronic abdominal pain.
  
  
  METHODS
  Participants were 368 pediatric patients whose subspecialty evaluations for chronic abdominal pain yielded no evidence of organic disease. The children's gastrointestinal symptoms were assessed with the parent-report version of the Questionnaire on Pediatric Gastrointestinal Symptoms (QPGS).
  
  
  RESULTS
  More patients met the criteria for a pediatric pain-related FGID according to the Rome III criteria (86.6%) than the Rome II criteria (68.0%). In comparison with the results from the Rome II criteria, the Rome III criteria classified a greater percentage of children as meeting criteria for Abdominal Migraine (23.1% vs 5.7%) and Functional Abdominal Pain (11.4% vs 2.7%). Irritable Bowel Syndrome was the most common diagnosis according to both Rome II (44.0%) and Rome III (45.1%).
  
  
  CONCLUSIONS
  Changes to the Rome criteria make the Rome III criteria more inclusive, allowing classification of 86.6% of pediatric patients with medically unexplained chronic abdominal pain.
authors: Department of Pediatrics, Division of Adolescent Medicine and Behavioral Science, Vanderbilt University Medical Center, Nashville, TN, USA.
authors: Kari F
authors: KF
authors: Baber
authors: Julia
authors: J
authors: Anderson
authors: Martina
authors: M
authors: Puzanovova
authors: Lynn S
authors: LS
authors: Walker
mesh_terms: D015746:Abdominal Pain / Q000145:classification / Q000175:diagnosis* / Q000209:etiology*; D002648:Child; D003937:Diagnosis, Differential; D004415:Dyspepsia / Q000145:classification / Q000175:diagnosis; D005260:Female; D005767:Gastrointestinal Diseases / Q000145:classification* / Q000175:diagnosis*; D006801:Humans; D043183:Irritable Bowel Syndrome / Q000145:classification / Q000175:diagnosis; D008297:Male; D008881:Migraine Disorders / Q000145:classification / Q000175:diagnosis; D010290:Parents / Q000523:psychology; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires