Evidence map›Paper›PMID 27703726›Full record

ArticleBJPsych open2015

Childhood IQ and risk of bipolar disorder in adulthood: prospective birth cohort study.

Daniel J Smith, Jana Anderson, Stanley Zammit, Thomas D Meyer, Jill P Pell, Daniel Mackay

Open access · goldAbstract read
In one paragraph

Article in BJPsych open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  6. Article
  7. Article
  8. Evaluating the causal relationship between educational attainment and mental health.medRxiv : the preprint server for health sciences · 2024
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  11. High intelligence is not associated with a greater propensity for mental health disorders.European psychiatry : the journal of the Association of European Psychiatrists · 2022
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  12. Genetics, leadership position, and well-being: An investigation with a large-scale GWAS.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. BJPsych open · 2020
    Article
  14. Article
  15. Review
  16. Article
  17. Big data for bipolar disorder.International journal of bipolar disorders · 2016
    Review
  18. Article
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

6 authors at 3 institutions in 3 countries.

Daniel J Smith, MD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, UK.
Jana Anderson, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, UK.
Stanley Zammit, PhD, Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Cardiff, Wales, UK.
Thomas D Meyer, PhD, Department of Psychiatry & Behavioral Sciences, University of Texas Medical School at Houston, Houston, TX, USA.
Jill P Pell, MD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, UK.
Daniel Mackay, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, UK.
University of Glasgow · GBThe University of Texas Health Science Center at Houston · USUniversity of Wales Institute Cardiff · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntellectual ability may be an endophenotypic marker for bipolar disorder.

aimsWithin a large birth cohort, we aimed to assess whether childhood IQ (including both verbal IQ (VIQ) and performance IQ (PIQ) subscales) was predictive of lifetime features of bipolar disorder assessed in young adulthood.

methodWe used data from the Avon Longitudinal Study of Parents and Children (ALSPAC), a large UK birth cohort, to test for an association between measures of childhood IQ at age 8 years and lifetime manic features assessed at age 22-23 years using the Hypomania Checklist-32 (HCL-32;

resultsThere was a positive association between IQ at age 8 years and lifetime manic features at age 22-23 years (Pearson's correlation coefficient 0.159 (95% CI 0.120-0.198),

conclusionsA higher childhood IQ score, and high VIQ in particular, may represent a marker of risk for the later development of bipolar disorder. This finding has implications for understanding of how liability to bipolar disorder may have been selected through generations. It will also inform future genetic studies at the interface of intelligence, creativity and bipolar disorder and is relevant to the developmental trajectory of bipolar disorder. It may also improve approaches to earlier detection and treatment of bipolar disorder in adolescents and young adults. DECLARATION OF INTEREST: None. COPYRIGHT AND USAGE: © The Royal College of Psychiatrists 2015. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) licence.

Identifiers

PMID27703726
PMCPMC4995557
OpenAlexW1865236583

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

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.