title: [Psychiatric and neuropsychological characterization of a group of adults referred to a university outpatient clinic for ADHD].
abstract: BACKGROUND
  Attention-deficit hyperactivity disorder (ADHD) has always been classified as a psychiatric disorder of childhood. Very little research has been done into the nature of adult ADHD.
  
  
  OBJECTIVE
  To obtain insight into the clinical profile of a group of adults referred to an outpatient clinic for diagnostic assessment of ADHD.
  
  
  METHODS
  A group of 225 adults diagnosed with ADHD were studied and compared with 101 adults who had been referred to the same outpatient clinic but had been given a different diagnosis. All referred patients were diagnosed according to dsm-iv criteria for ADHD and underwent neuropsychological tests.
  
  
  RESULTS
  The diagnosis of ADHD was confirmed in 69% of the patients. In the ADHD group 72% were male and the average age was 32. Half of these patients had a co-morbid disorder. The 2 groups did not differ in psychopathology but the ADHD group used nicotine and alcohol more frequently. Neuropsychological tests revealed more signs of subjective distractibility in the non-ADHD group, whereas in the objective tests it was the ADHD group who gave a poorer performance.
  
  
  CONCLUSIONS
  This study describes the clinical profile of a group of adults referred to an outpatient clinic for ADHD. The ADHD group differed from the non-ADHD group in a number of demographical, psychiatric and neuropsychological parameters.
authors.affiliation: Psychiatrie van het Erasmus Medisch Centrum Rotterdam, The Netherlands. praktijk-mvegt@zeelandnet.nl
authors.forename: M
authors.initials: M
authors.lastname: Vegt
authors.forename: J H M
authors.initials: JH
authors.lastname: Tulen
authors.forename: H R
authors.initials: HR
authors.lastname: van Tuijl
authors.forename: C W
authors.initials: CW
authors.lastname: Twigt
authors.forename: M W
authors.initials: MW
authors.lastname: Hengeveld
mesh_terms: D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis* / Q000453:epidemiology; D015897:Comorbidity; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D009426:Netherlands; D009483:Neuropsychological Tests; D010044:Outpatient Clinics, Hospital; D012737:Sex Factors