title: [Reference population values for the Spanish Child Health and Illness Profile-Adolescent Edition (CHIP-AE) using a representative school-based sample].
abstract: OBJECTIVE
  The Child Health and Illness Profile (CHIP-AE) is a generic health status instrument for adolescents aged 12-19 years adapted for use in Spain. The aim of this study was to obtain reference population values of the Spanish version of the CHIP-AE.
  
  
  METHODS
  The CHIP-AE was administered to a representative sample of adolescents from schools in Barcelona. The sample was selected by using cluster-sampling, stratified by type of school (public or private) and an ecological socioeconomic index (Indice de Capacidad Familiar: low, middle, and high). The CHIP-AE scores were standardized to a mean of 20 and a standard deviation (SD) of 5. Means and percentiles were computed. Means were compared by age, gender, and socioeconomic status using analysis of variance.
  
  
  RESULTS
  The response rate was 81% (n = 902). The distribution of the CHIP-AE scores presented a wide range with scores generally skewed toward positive health status. Nevertheless, the results suggest that the sample selected from a general population was not free of health problems. Twenty-five percent of adolescents presented scores below 17.2 in the domain of discomfort, indicating an effect size of 0.56 standardized SD units. The distribution of scores in the reference samples from Barcelona was similar to the original results in Baltimore (USA), with some marginal differences in individual risks.
  
  
  CONCLUSIONS
  The CHIP-AE systematically gathers information on health domains in adolescents. The results from this reference sample will allow comparisons with adolescents from other regions, and/or with different health problems, as well as description of inequalities in health during adolescence.
authors.affiliation: Agència d'Avaluació de Tecnologia i Recerca Mèdiques (AATRM). Barcelona, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Serra-Sutton
authors.forename: L
authors.initials: L
authors.lastname: Rajmil
authors.forename: J
authors.initials: J
authors.lastname: Alonso
authors.forename: A
authors.initials: A
authors.lastname: Riley
authors.forename: B
authors.initials: B
authors.lastname: Starfield
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D012016:Reference Values; D013030:Spain