title: Chronic health problems and health-related quality of life in Chinese children and adolescents: a population-based study in Hong Kong.
abstract: OBJECTIVE
  We examined the association of different chronic physical and mental conditions, individually or comorbidly on health-related quality of life (QoL) in Chinese children aged ≤14 years in Hong Kong.
  
  
  METHODS
  Population-based cross-sectional survey.
  
  
  METHODS
  Approximately 7500 Chinese children aged <14 years in Hong Kong.
  
  
  METHODS
  Nil.
  
  
  METHODS
  Various health concepts of validated Chinese version of Child Health Questionnaire (CHQ), a health-related QoL questionnaire in children.
  
  
  RESULTS
  There was significant association of physical and mental health conditions, either individually or comorbidly, on the various concepts of CHQ. Children with mental health problems were apparently more affected than those with physical health problems. Chronic renal disease and congenital malformation were the physical health conditions associated with the lowest scores in CHQ concepts in children aged 5-10 years and aged 10-14 years, respectively. Behavioural problem was the mental health condition associated with the lowest score in CHQ concepts in both age groups.
  
  
  CONCLUSIONS
  Our study shows important information concerning the prevalence of different health conditions and its association, either individually or comorbidly on the QoL in a representative sample of Chinese children in HK.
authors.affiliation: Department of Paediatrics and Adolescent Medicine,  The University of Hong Kong, Hong Kong,  Hong Kong.
authors.forename: S L
authors.initials: SL
authors.lastname: Lee
authors.forename: Y F
authors.initials: YF
authors.lastname: Cheung
authors.forename: H S W
authors.initials: HS
authors.lastname: Wong
authors.forename: T H
authors.initials: TH
authors.lastname: Leung
authors.forename: T H
authors.initials: TH
authors.lastname: Lam
authors.forename: Y L
authors.initials: YL
authors.lastname: Lau