Evidence map›Paper›PMID 34482360›Full record

ArticleTranslational psychiatry2021

The link between attention deficit hyperactivity disorder (ADHD) symptoms and obesity-related traits: genetic and prenatal explanations.

Ville Karhunen, Tom A Bond, Verena Zuber, Tuula Hurtig, Irma Moilanen, Marjo-Riitta Järvelin, Marina Evangelou, Alina Rodriguez

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 3 countries.

Ville KarhunenDepartment of Epidemiology and Biostatistics, Imperial College London, London, UK.ORCID http://orcid.org/0000-0001-6064-1588
Tom A BondDepartment of Epidemiology and Biostatistics, Imperial College London, London, UK.ORCID http://orcid.org/0000-0002-9298-6860
Verena ZuberDepartment of Epidemiology and Biostatistics, Imperial College London, London, UK.
Tuula HurtigResearch Unit of Clinical Neuroscience, Psychiatry, University of Oulu, Oulu, Finland.
Irma MoilanenPEDEGO Research Unit, Child Psychiatry, University of Oulu, Oulu, Finland.
Marjo-Riitta JärvelinDepartment of Epidemiology and Biostatistics, Imperial College London, London, UK.ORCID http://orcid.org/0000-0002-2149-0630
Marina EvangelouDepartment of Mathematics, Imperial College London, London, UK.ORCID http://orcid.org/0000-0003-0789-8944
Alina RodriguezDepartment of Epidemiology and Biostatistics, Imperial College London, London, UK. a.rodriguez@imperial.ac.uk.ORCID http://orcid.org/0000-0003-1209-8802
Imperial College London · GBOulu University Hospital · FIQueen Mary University of London · GBThe University of Queensland · AU

Funding

Medical Research Council MR/S03658X/1
6 · The paper itself

Abstract

Attention-deficit/hyperactivity disorder (ADHD) often co-occurs with obesity, however, the potential causality between the traits remains unclear. We examined both genetic and prenatal evidence for causality using Mendelian Randomisation (MR) and polygenic risk scores (PRS). We conducted bi-directional MR on ADHD liability and six obesity-related traits using summary statistics from the largest available meta-analyses of genome-wide association studies. We also examined the shared genetic aetiology between ADHD symptoms (inattention and hyperactivity) and body mass index (BMI) by PRS association analysis using longitudinal data from Northern Finland Birth Cohort 1986 (NFBC1986, n = 2984). Lastly, we examined the impact of the prenatal environment by association analysis of maternal pre-pregnancy BMI and offspring ADHD symptoms, adjusted for PRS of both traits, in NFBC1986 dataset. Through MR analyses, we found evidence for bidirectional causality between ADHD liability and obesity-related traits. PRS association analyses showed evidence for genetic overlap between ADHD symptoms and BMI. We found no evidence for a difference between inattention and hyperactivity symptoms, suggesting that neither symptom subtype is driving the association. We found evidence for association between maternal pre-pregnancy BMI and offspring ADHD symptoms after adjusting for both BMI and ADHD PRS (association p-value = 0.027 for inattention, p = 0.008 for hyperactivity). These results are consistent with the hypothesis that the co-occurrence between ADHD and obesity has both genetic and prenatal environmental origins.

Indexed as

Attention Deficit Disorder with HyperactivityBody Mass IndexFemaleGenome-Wide Association StudyHumansMendelian Randomization AnalysisObesityPregnancy

Identifiers

PMID34482360
PMCPMC8418601
OpenAlexW3196783246

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.