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Adult attention deficit hyperactivity symptoms and psychosis: Epidemiological evidence from a population survey in England

Marwaha, S; Thompson, A; Bebbington, P; Singh, SP; Freeman, D; Winsper, C; Broome, MR; (2015) Adult attention deficit hyperactivity symptoms and psychosis: Epidemiological evidence from a population survey in England. Psychiatry Research , 229 (1-2) pp. 49-56. 10.1016/j.psychres.2015.07.075. Green open access

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Abstract

Despite both having some shared features, evidence linking psychosis and adult attention deficit hyperactivity disorder (ADHD) is sparse and inconsistent. Hypotheses tested were (1) adult ADHD symptoms are associated with auditory hallucinations, paranoid ideation and psychosis (2) links between ADHD symptoms and psychosis are mediated by prescribed ADHD medications, use of illicit drugs, and dysphoric mood. The Adult Psychiatric Morbidity Survey 2007 (N=7403) provided data for regression and multiple mediation analyses. ADHD symptoms were coded from the ADHD Self-Report Scale (ASRS). Higher ASRS total score was significantly associated with psychosis, paranoid ideation and auditory hallucinations despite controlling for socio-demographic variables, verbal IQ, autism spectrum disorder traits, childhood conduct problems, hypomanic and dysphoric mood. An ASRS score indicating probable ADHD diagnosis was also significantly associated with psychosis. The link between higher ADHD symptoms and psychosis, paranoia and auditory hallucinations was significantly mediated by dysphoric mood, but not by use of amphetamine, cocaine or cannabis. In conclusion, higher levels of adult ADHD symptoms and psychosis are linked and dysphoric mood may form part of the mechanism. Our analyses contradict the traditional clinical view that the main explanation for people with ADHD symptoms developing psychosis is illicit drugs.

Type: Article
Title: Adult attention deficit hyperactivity symptoms and psychosis: Epidemiological evidence from a population survey in England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.psychres.2015.07.075
Publisher version: https://doi.org/10.1016/j.psychres.2015.07.075
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Life Sciences & Biomedicine, Psychiatry, ADHD, Psychosis, Cannabis, Cocaine, Depression, NATIONAL-SURVEY DATA, REPORT SCALE ASRS, DEFICIT/HYPERACTIVITY DISORDER, PSYCHIATRIC COMORBIDITY, GENERAL-POPULATION, FOLLOW-UP, SCHIZOPHRENIA, CHILDHOOD, ADOLESCENCE
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > IoN RLW Inst of Neurological Sci
URI: https://discovery.ucl.ac.uk/id/eprint/1477702
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