The relationship between genetic liability, childhood maltreatment, and IQ: findings from the EU-GEI multicentric case-control study

Lucia Sideli*, Monica Aas, Diego Quattrone, Daniele La Barbera, Caterina La Cascia, Laura Ferraro, Luis Alameda, Eva Velthorst, Giulia Trotta, Giada Tripoli, Adriano Schimmenti, Andrea Fontana, Charlotte Gayer-Anderson, Simona Stilo, Fabio Seminerio, Crocettarachele Sartorio, Giovanna Marrazzo, Antonio Lasalvia, Sarah Tosato, Ilaria TarriconeDomenico Berardi, Giuseppe D'Andrea, Celso Arango, Manuel Arrojo, Miguel Bernardo, Julio Bobes, Julio Sanjuan, Jose Luis Santos, Paulo Rossi Menezes, Cristina Marta Del-Ben, Hannah E. Jongsma, Peter B. Jones, James B. Kirkbride, Pierre-Michel Llorca, Andrea Tortell, Baptiste Pignon, Lieuwe de Haan, Jean-Paul Selten, Jim Van Os, Bart P. Rutten, Richard Bentall, Marta Di Fort, Robin M. Murray, Craig Morgan, Helen L. Fisher, EU-GEI WP2 Group

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

This study investigated if the association between childhood maltreatment and cognition among psychosis patients and community controls was partially accounted for by genetic liability for psychosis. Patients with first-episode psychosis (N = 755) and unaffected controls (N = 1219) from the EU-GEI study were assessed for childhood maltreatment, intelligence quotient (IQ), family history of psychosis (FH), and polygenic risk score for schizophrenia (SZ-PRS). Controlling for FH and SZ-PRS did not attenuate the association between childhood maltreatment and IQ in cases or controls. Findings suggest that these expressions of genetic liability cannot account for the lower levels of cognition found among adults maltreated in childhood.
Original languageEnglish
Pages (from-to)1573-1580
Number of pages8
JournalSocial Psychiatry and Psychiatric Epidemiology
Volume58
Issue number10
Early online date1 Jun 2023
DOIs
Publication statusPublished - Oct 2023

Keywords

  • Childhood adversity
  • Cognition
  • Family history of psychosis
  • First episode
  • Polygenic risk score
  • Psychosis
  • FAMILIAL RISK
  • TRAUMA
  • SCHIZOPHRENIA
  • COGNITION
  • INTERPLAY
  • VALIDITY
  • MODERATE
  • OVERLAP
  • ABILITY
  • ONSET

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