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Genome-wide Association Meta-analysis of Childhood and Adolescent Internalizing Symptoms

  • Eshim S. Jami
  • , Anke R. Hammerschlag
  • , Hill F. Ip
  • , Andrea G. Allegrini
  • , Beben Benyamin
  • , Richard Border
  • , Elizabeth W. Diemer
  • , Chang Jiang
  • , Ville Karhunen
  • , Yi Lu
  • , Qing Lu
  • , Travis T. Mallard
  • , Pashupati P. Mishra
  • , Ilja M. Nolte
  • , Teemu Palviainen
  • , Roseann E. Peterson
  • , Hannah M. Sallis
  • , Andrey A. Shabalin
  • , Ashley E. Tate
  • , Elisabeth Thiering
  • Natàlia Vilor-Tejedor, Carol Wang, Ang Zhou, Daniel E. Adkins, Silvia Alemany, Helga Ask, Qi Chen, Robin P. Corley, Erik A. Ehli, Luke M. Evans, Alexandra Havdahl, Fiona A. Hagenbeek, Christian Hakulinen, Anjali K. Henders, Jouke Jan Hottenga, Tellervo Korhonen, Abdullah Mamun, Shelby Marrington, Alexander Neumann, Kaili Rimfeld, Fernando Rivadeneira, Judy L. Silberg, Catharina E. van Beijsterveldt, Eero Vuoksimaa, Alyce M. Whipp, Xiaoran Tong, Ole A. Andreassen, Dorret I. Boomsma, Sandra A. Brown, Marcus R. Munafò
  • Vrije Universiteit Amsterdam
  • University College London
  • Amsterdam Public Health
  • University of Queensland
  • King's College London
  • University of South Australia
  • South Australian Health and Medical Research Institute
  • University of Colorado
  • Erasmus University Medical Center
  • Harvard University
  • Michigan State University
  • University of Florida
  • Imperial College London
  • The Karolinska Institute
  • University of Texas
  • Tampere University of Technology
  • Rijksuniversiteit Groningen
  • University of Helsinki
  • Virginia Institute for Psychiatric and Behavioral Genetics
  • University of Bristol
  • University of Utah
  • Helmholtz Center Munich - German Research Center for Environmental Health
  • Ludwig Maximilian University of Munich
  • Universitat Pompeu Fabra
  • Barcelona Institute of Science and Technology
  • The University of Newcastle, Australia
  • University of Barcelona
  • Norwegian Institute of Public Health
  • Avera McKennan Hospital & University Health Center
  • Jewish General Hospital
  • University of Oslo
  • University of California, San Diego
  • School of Psychological Science
  • University Hospitals Bristol NHS Foundation Trust

Research output: Contribution to journal › Article › peer-review

49   Link opens in a new tab Citations (SciVal)

Abstract

Objective: To investigate the genetic architecture of internalizing symptoms in childhood and adolescence. 

Method: In 22 cohorts, multiple univariate genome-wide association studies (GWASs) were performed using repeated assessments of internalizing symptoms, in a total of 64,561 children and adolescents between 3 and 18 years of age. Results were aggregated in meta-analyses that accounted for sample overlap, first using all available data, and then using subsets of measurements grouped by rater, age, and instrument. 

Results: The meta-analysis of overall internalizing symptoms (INToverall) detected no genome-wide significant hits and showed low single nucleotide polymorphism (SNP) heritability (1.66%, 95% CI = 0.84-2.48%, neffective = 132,260). Stratified analyses indicated rater-based heterogeneity in genetic effects, with self-reported internalizing symptoms showing the highest heritability (5.63%, 95% CI = 3.08%-8.18%). The contribution of additive genetic effects on internalizing symptoms appeared to be stable over age, with overlapping estimates of SNP heritability from early childhood to adolescence. Genetic correlations were observed with adult anxiety, depression, and the well-being spectrum (|rg| > 0.70), as well as with insomnia, loneliness, attention-deficit/hyperactivity disorder, autism, and childhood aggression (range |rg| = 0.42-0.60), whereas there were no robust associations with schizophrenia, bipolar disorder, obsessive-compulsive disorder, or anorexia nervosa. 

Conclusion: Genetic correlations indicate that childhood and adolescent internalizing symptoms share substantial genetic vulnerabilities with adult internalizing disorders and other childhood psychiatric traits, which could partially explain both the persistence of internalizing symptoms over time and the high comorbidity among childhood psychiatric traits. Reducing phenotypic heterogeneity in childhood samples will be key in paving the way to future GWAS success.

Original languageEnglish
Pages (from-to)934-945
Number of pages12
JournalJournal of the American Academy of Child and Adolescent Psychiatry
Volume61
Issue number7
Early online date31 Mar 2022
DOIs
Publication statusPublished - 31 Jul 2022

Acknowledgements

The authors extend a warm thank you to all participants, their parents, and teachers for taking part in this study. They would also like to thank Gareth E. Davies, PhD, of the University of South Dakota, Elizabeth J. Costello, PhD, of Duke University, and Lindon J. Eaves, PhD, of Virginia Commonwealth University, for their input on earlier versions of this manuscript.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • anxiety
  • depression
  • genetic epidemiology
  • molecular genetics
  • repeated measures

ASJC Scopus subject areas

  • Developmental and Educational Psychology
  • Psychiatry and Mental health

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