title: ECI-4 screening of attention deficit-hyperactivity disorder and co-morbidity in Mexican preschool children: preliminary results.
abstract: OBJECTIVE
  To examine prospectively usefulness of Early Childhood Inventory-4 (ECI-4) in identifying attention deficit-hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and conduct disorder (CD).
  
  
  METHODS
  A sample of children <6 years of age were evaluated in school settings with ECI-4 and results compared with those of Conners Rating Scales-Revised (CRS-R) 6 months later. Sample consisted of 34 healthy children (20 boys, 14 girls) prospectively followed-up.
  
  
  RESULTS
  Frequency of children fulfill DSM-IV AD-HD criteria in ECI-4 parent scale was 17%, and in teacher scale was 32%. Frequency of children fulfill DSM-IV AD-HD criteria in parent CRS-R was 20%, and for teacher questionnaire was 23%. Correlations were significant among teacher ECI-4 and both teacher and parent CRS-R scales. Sensitivity and specificity of teacher and parent ECI-4 scales were not good. Frequency of ODD identified in parent ECI-4 scale was 5%, and for teacher 17%. Frequency of ODD in CRS-R for parents and teachers questionnaires was 17%. CD was not identified by parents in ECI-4 scale, but in teacher scale frequency was 14%.
  
  
  CONCLUSIONS
  These facts support partially the use of ECI-4 screening of ADHD in Spanish-speaking preschool children.
authors.affiliation: Laboratory of Cognitive Neurophysiology, National Institute of Rehabilitation, Mexico City, Mexico. drdyslexia@starmedia.com
authors.forename: Adrián
authors.initials: A
authors.lastname: Poblano
authors.forename: Erika
authors.initials: E
authors.lastname: Romero
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000453:epidemiology; D019958:Attention Deficit and Disruptive Behavior Disorders / Q000175:diagnosis* / Q000453:epidemiology; D002675:Child, Preschool; D015897:Comorbidity; D019955:Conduct Disorder / Q000175:diagnosis / Q000453:epidemiology; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008800:Mexico / Q000453:epidemiology; D010865:Pilot Projects; D011569:Psychiatric Status Rating Scales; D012680:Sensitivity and Specificity