Evidence map›Paper›PMID 34999873›Full record

ArticleInternational journal of epidemiology2022

Is genetic liability to ADHD and ASD causally linked to educational attainment?

Christina Dardani, Lucy Riglin, Beate Leppert, Eleanor Sanderson, Dheeraj Rai, Laura D Howe, George Davey Smith, Kate Tilling, Anita Thapar, Neil M Davies and 2 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in International journal of epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 41 citations in OpenAlex.

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  15. [Advances in Mendelian randomization studies on autism spectrum disorder].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2024
    Review
  16. Evaluating the causal relationship between educational attainment and mental health.medRxiv : the preprint server for health sciences · 2024
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 2 countries.

Christina DardaniCentre of Academic Mental Health, Bristol Medical School, University of Bristol, Bristol, UK.ORCID 0000-0002-2019-7897
Lucy RiglinDivision of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK.
Beate LeppertMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.ORCID 0000-0002-5300-3331
Eleanor SandersonMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.ORCID 0000-0001-5188-5775
Dheeraj RaiCentre of Academic Mental Health, Bristol Medical School, University of Bristol, Bristol, UK.
Laura D HoweMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.
George Davey SmithMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.
Kate TillingMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.
Anita ThaparDivision of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK.
Neil M DaviesMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.ORCID 0000-0002-2460-0508
Emma AndersonMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.
Evie StergiakouliMedical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.
University of Bristol · GBCardiff University · GBNorwegian University of Science and Technology · NO

Funding

Medical Research Council MC_UU_00011/3Medical Research Council MC_UU_00011/5Medical Research Council MR/M020894/1Medical Research Council MR/P014437/1Wellcome Trust 108902/B/15/ZWellcome Trust 204895/Z/16/Z
6 · The paper itself

Abstract

backgroundThe association patterns of attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) with educational attainment (EA) are complex; children with ADHD and ASD are at risk of poor academic outcomes, and parental EA has been associated with risk of ADHD/ASD in the offspring. Little is known on the causal links between ADHD, ASD, EA and the potential contribution of cognitive ability.

methodsUsing the latest genome-wide association studies (GWAS) summary data on ADHD, ASD and EA, we applied two-sample Mendelian randomization (MR) to assess the effects of genetic liability to ADHD and ASD on EA. Reverse direction analyses were additionally performed. Multivariable MR was performed to estimate any effects independent of cognitive ability.

resultsGenetic liability to ADHD had a negative effect on EA, independently of cognitive ability (MVMRIVW: -1.7 months of education per doubling of genetic liability to ADHD; 95% CI: -2.8 to -0.7), whereas genetic liability to ASD a positive effect (MVMRIVW: 30 days per doubling of the genetic liability to ASD; 95% CI: 2 to 53). Reverse direction analyses suggested that genetic liability to higher EA had an effect on lower risk of ADHD, independently of cognitive ability (MVMRIVWOR: 0.33 per SD increase; 95% CI: 0.26 to 0.43) and increased risk of ASD (MRIVWOR: 1.51 per SD increase; 95% CI: 1.29 to 1.77), which was partly explained by cognitive ability (MVMRIVWOR per SD increase: 1.24; 95%CI: 0.96 to 1.60).

conclusionsGenetic liability to ADHD and ASD is likely to affect educational attainment, independently of underlying cognitive ability.

Indexed as

Attention Deficit Disorder with HyperactivityAutism Spectrum DisorderChildEducational StatusGenome-Wide Association StudyHumansPolymorphism, Single NucleotideADHDASDcognitive abilityeducationMendelian randomizationmultivariable

Identifiers

PMID34999873
PMCPMC8743131
OpenAlexW3157543817

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.