title: Criterion validity of an Attention Deficit Hyperactivity Disorder (ADHD) screening list for screening ADHD in older adults aged 60-94 years.
abstract: OBJECTIVE
  To identify Attention Deficit Hyperactivity disorder (ADHD) in older adults, a validated screener is needed. This study evaluates the reliability and criterion validity of an ADHD screener for younger adults on its usefulness in a population-based sample of older adults.
  
  
  METHODS
  Data were collected as a side study in the Longitudinal Aging Study Amsterdam. In a two-phase design the validity of the screener was tested against a structured diagnostic interview (DIVA 2.0). In Phase 1, 1,494 respondents (60-94 years) were assessed with the ADHD screener. In Phase 2, 231 respondents participated in the diagnostic interview.
  
  
  RESULTS
  Internal consistency (Cronbach's α) and reliability (ICC) of the screener were 0.71 and 0.56, respectively. The area under the curve was 0.82. The optimal cut-point was found at 2 (sensitivity: 0.80; specificity: 0.77; PPV: 0.13; NPV: 0.99).
  
  
  CONCLUSIONS
  Despite its low ICC, the ADHD screener may serve as a useful contribution to measure ADHD in the older population.
authors.affiliation: Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands. e.semeijn@vumc.nl
authors.forename: Evert J
authors.initials: EJ
authors.lastname: Semeijn
authors.forename: Marieke
authors.initials: M
authors.lastname: Michielsen
authors.forename: Hannie C
authors.initials: HC
authors.lastname: Comijs
authors.forename: Dorly J H
authors.initials: DJ
authors.lastname: Deeg
authors.forename: Aartjan T F
authors.initials: AT
authors.lastname: Beekman
authors.forename: J J Sandra
authors.initials: JJ
authors.lastname: Kooij
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000295:instrumentation; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires