title: Cognitive deficits in problematic drinkers with and without mild to borderline intellectual disability.
abstract: We examined cognitive deficits in problematic drinkers with and without mild to borderline intellectual disability (MBID). Problematic drinkers were expected to show a significantly lower estimated performance IQ (PIQ), but not a lower estimated verbal IQ (VIQ), compared to light drinkers. Participants ( N = 474) were divided into four groups based on IQ and severity of alcohol use-related problems. IQ was estimated using (a short form of) the Wechsler Adult Intelligence Scale third edition. Severity of alcohol use-related problems was assessed using the Alcohol Use Disorder Identification Test. Overall, there were no significant differences between light and problematic drinkers on estimated VIQ. Within the group without MBID, estimated PIQ was significantly lower. Estimated PIQ was not lower in problematic drinkers with MBID compared to light drinkers with MBID. The results are indicative of cognitive deficits in problematic drinkers without MBID. Screening for cognitive deficits with additional instruments is advised.
authors.affiliation: Radboud University, the Netherlands.
authors.forename: Neomi
authors.initials: N
authors.lastname: van Duijvenbode
authors.affiliation: Radboud University, the Netherlands; Trajectum, the Netherlands.
authors.forename: Robert
authors.initials: R
authors.lastname: Didden
authors.affiliation: Aveleijn, the Netherlands; Radboud University, the Netherlands; Tactus, the Netherlands.
authors.forename: Joanne El
authors.initials: JE
authors.lastname: VanDerNagel
authors.affiliation: Radboud University, the Netherlands.
authors.forename: Hubert Plm
authors.initials: HP
authors.lastname: Korzilius
authors.affiliation: Utrecht University, the Netherlands.
authors.forename: Rutger Cme
authors.initials: RC
authors.lastname: Engels
mesh_terms: D000328:Adult; D000428:Alcohol Drinking / Q000503:physiopathology*; D019973:Alcohol-Related Disorders / Q000503:physiopathology*; D060825:Cognitive Dysfunction / Q000503:physiopathology*; D006801:Humans; D008607:Intellectual Disability / Q000503:physiopathology*; D007360:Intelligence / Q000502:physiology*; D008297:Male
keywords: IQ; addiction; alcohol; cognitive deficits; mild intellectual disability