title: [Auditory processing disorder versus attention deficit/hyperactivity disorder. A dysfunction complex or different entities?].
abstract: BACKGROUND
  It has been suggested that auditory processing disorders (APD) and attention deficit/hyperactivity disorders (ADHD) may be the same entity with slightly differing symptoms. For testing this theory we compared parents' ratings of APD and ADHD behavioural characteristics.
  
  
  METHODS
  A retrospective study was carried out with parents rating 312 children (113 girls and 199 boys; 6.0-9.11 years old, nonverbal intelligence IQ 95 or above) using APD and ADHD questionnaires.
  
  
  RESULTS
  Significant, albeit weak correlations between several APD and ADHD subscale scores were found. Correlations between selective listening and attention behaviours approximated clinical relevance (rho >0.4). Factor analysis revealed two factors with APD behaviour loading on one and ADHD behaviour on a second different factor. Using a categorical approach, it appears that ADHD children have significantly more APD problems than children without ADHD.
  
  
  CONCLUSIONS
  These data are consistent with the hypothesis that APD and ADHD overlap partly while still being distinct entities. In addition to dimensional aspects, the parents' rating may provide a guideline for establishing a diagnosis based on categorical distinctions.
authors.affiliation: Klinik und Poliklinik für Phoniatrie und Pädaudiologie, Medizinische Hochschule Hannover. ptok.martin@mh-hannover.de
authors.forename: M
authors.initials: M
authors.lastname: Ptok
authors.forename: N
authors.initials: N
authors.lastname: Buller
authors.forename: C
authors.initials: C
authors.lastname: Schwemmle
authors.forename: C
authors.initials: C
authors.lastname: Bergmann
authors.forename: K
authors.initials: K
authors.lastname: Lüerssen
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis*; D001308:Auditory Perceptual Disorders / Q000175:diagnosis*; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D013223:Statistics as Topic; D011795:Surveys and Questionnaires