Article (Scientific journals)
Associations Between Attention-Deficit/Hyperactivity Disorder and Various Eating Disorders: A Swedish Nationwide Population Study Using Multiple Genetically Informative Approaches.
Yao, Shuyang; Kuja-Halkola, Ralf; Martin, Joanna et al.
2019In Biological Psychiatry, 86 (8), p. 577-586
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Keywords :
ADHD; Anorexia nervosa; Bulimia nervosa; Eating disorders; Genetic epidemiology; Polygenic risk score
Abstract :
[en] BACKGROUND: Although attention-deficit/hyperactivity disorder (ADHD) and eating disorders (EDs) frequently co-occur, little is known about the shared etiology. In this study, we comprehensively investigated the genetic association between ADHD and various EDs, including anorexia nervosa (AN) and other EDs such as bulimia nervosa. METHODS: We applied different genetically informative designs to register-based information of a Swedish nationwide population (N = 3,550,118). We first examined the familial coaggregation of clinically diagnosed ADHD and EDs across multiple types of relatives. We then applied quantitative genetic modeling in full-sisters and maternal half-sisters to estimate the genetic correlations between ADHD and EDs. We further tested the associations between ADHD polygenic risk scores and ED symptoms, and between AN polygenic risk scores and ADHD symptoms, in a genotyped population-based sample (N = 13,472). RESULTS: Increased risk of all types of EDs was found in individuals with ADHD (any ED: odds ratio [OR] = 3.97, 95% confidence interval [CI] = 3.81, 4.14; AN: OR = 2.68, 95% CI = 2.15, 2.86; other EDs: OR = 4.66, 95% CI = 4.47, 4.87; bulimia nervosa: OR = 5.01, 95% CI = 4.63, 5.41) and their relatives compared with individuals without ADHD and their relatives. The magnitude of the associations decreased as the degree of relatedness decreased, suggesting shared familial liability between ADHD and EDs. Quantitative genetic models revealed stronger genetic correlation of ADHD with other EDs (.37, 95% CI = .31, .42) than with AN (.14, 95% CI = .05, .22). ADHD polygenic risk scores correlated positively with ED symptom measures overall and with the subscales Drive for Thinness and Body Dissatisfaction despite small effect sizes. CONCLUSIONS: We observed stronger genetic association with ADHD for non-AN EDs than for AN, highlighting specific genetic correlation beyond a general genetic factor across psychiatric disorders.
Disciplines :
Genetics & genetic processes
Author, co-author :
Yao, Shuyang
Kuja-Halkola, Ralf
Martin, Joanna
Lu, Yin ;  Université de Liège - ULiège > Département de géographie > Géomorphologie et Géologie du Quaternaire
Lichtenstein, Paul
Norring, Claes
Birgegard, Andreas
Yilmaz, Zeynep
Hubel, Christopher
Watson, Hunna
Baker, Jessica
Almqvist, Catarina
Thornton, Laura M.
Magnusson, Patrik K.
Bulik, Cynthia M.
Larsson, Henrik
More authors (6 more) Less
Other collaborator :
DOCAMPO MARTINEZ, Elisa ;  Centre Hospitalier Universitaire de Liège - CHU > Département de médecine interne > Service de rhumatologie
Language :
English
Title :
Associations Between Attention-Deficit/Hyperactivity Disorder and Various Eating Disorders: A Swedish Nationwide Population Study Using Multiple Genetically Informative Approaches.
Publication date :
2019
Journal title :
Biological Psychiatry
ISSN :
0006-3223
Publisher :
Elsevier, Netherlands
Volume :
86
Issue :
8
Pages :
577-586
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2019 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.
Available on ORBi :
since 29 December 2019

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