Evidence map›Paper›PMID 31031992›Full record

ArticleRoyal Society open science2019

Schizophrenia risk and reproductive success: a Mendelian randomization study.

Rebecca B Lawn, Hannah M Sallis, Amy E Taylor, Robyn E Wootton, George Davey Smith, Neil M Davies, Gibran Hemani, Abigail Fraser, Ian S Penton-Voak, Marcus R Munafò

Abstract read
In one paragraph

Article in Royal Society open science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Mendelian Randomization: Concepts and Scope.Cold Spring Harbor perspectives in medicine · 2022
    Review
  13. Article
  14. Article
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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

10 authors.

Rebecca B LawnMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.ORCID 0000-0002-4353-4155
Hannah M SallisMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.ORCID 0000-0002-4793-6290
Amy E TaylorMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.
Robyn E WoottonMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.
George Davey SmithMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.
Neil M DaviesMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.
Gibran HemaniMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.
Abigail FraserMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.
Ian S Penton-VoakSchool of Psychological Science, University of Bristol, Bristol BS8 1TU, UK.
Marcus R MunafòMRC Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK.

Funding

Medical Research Council MC_UU_00011/1Medical Research Council MC_UU_00011/7Medical Research Council MR/M009351/1Wellcome Trust 208806/Z/17/Z
6 · The paper itself

Abstract

Schizophrenia is a debilitating and heritable mental disorder associated with lower reproductive success. However, the prevalence of schizophrenia is stable over populations and time, resulting in an evolutionary puzzle: how is schizophrenia maintained in the population, given its apparent fitness costs? One possibility is that increased genetic liability for schizophrenia, in the absence of the disorder itself, may confer some reproductive advantage. We assessed the correlation and causal effect of genetic liability for schizophrenia with number of children, age at first birth and number of sexual partners using data from the Psychiatric Genomics Consortium and UK Biobank. Linkage disequilibrium score regression showed little evidence of genetic correlation between genetic liability for schizophrenia and number of children (

Indexed as

cliff-edge fitnessMendelian randomizationreproductive successschizophreniastabilizing selection

Identifiers

PMID31031992
PMCPMC6458425

What OpenQuestion holds

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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.