title: Reliability and validity of the Child Health QuestionnairePF-50 for European children with cerebral palsy.
abstract: OBJECTIVE
  To evaluate the psychometric performance of the Child Health Questionnaire (CHQ) in children with cerebral palsy (CP).
  
  
  METHODS
  818 parents of children with CP, aged 8-12 from nine regions of Europe completed the CHQ (parent form 50 items). Functional abilities were classified using the five-level Gross Motor Function Classification Scheme (Levels I-III as ambulant; Level IV-V as nonambulant CP).
  
  
  RESULTS
  Ceiling effects were observed for a number of subscales and summary scores across all Gross Motor Function Classification System levels, whilst floor effects occurred only in the physical functioning scale (Level V CP). Reliability was satisfactory overall. Confirmatory factor analysis (CFA) revealed a seven-factor structure for the total sample of children with CP but with different factor structures for ambulant and nonambulant children.
  
  
  CONCLUSIONS
  The CHQ has limited applicability in children with CP, although with judicious use of certain domains for ambulant and nonambulant children can provide useful and comparable data about child health status for descriptive purposes.
authors.affiliation: School of Nursing & Midwifery, Queen's University Belfast, Belfast, UK. nichola.mccullough@qub.ac.uk
authors.forename: Nichola
authors.initials: N
authors.lastname: McCullough
authors.forename: Jackie
authors.initials: J
authors.lastname: Parkes
authors.forename: Melanie
authors.initials: M
authors.lastname: White-Koning
authors.forename: Eva
authors.initials: E
authors.lastname: Beckung
authors.forename: Allan
authors.initials: A
authors.lastname: Colver
mesh_terms: D000203:Activities of Daily Living / Q000145:classification / Q000523:psychology; D000223:Adaptation, Psychological; D002547:Cerebral Palsy / Q000523:psychology*; D002648:Child; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005062:European Union; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D051346:Mobility Limitation; D010290:Parents / Q000523:psychology*; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D012803:Sick Role; D011795:Surveys and Questionnaires