Cited by 273Genetic Associations and EpidemiologyGenetic Mapping and Diversity in Plants and AnimalsForensic and Genetic Research

Genetic analyses identify widespread sex-differential participation bias

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Pirastu, Nicola, Cordioli, Mattia, Nandakumar, Priyanka, Mignogna, Gianmarco, Abdellaoui, Abdel, Hollis, Benjamin, Kanai, Masahiro, Rajagopal, Veera M. +69 more·2021·Nature Genetics

Published version of a preprint

Abstract

Genetic association results are often interpreted with the assumption that study participation does not affect downstream analyses. Understanding the genetic basis of participation bias is challenging since it requires the genotypes of unseen individuals. Here we demonstrate that it is possible to estimate comparative biases by performing a genome-wide association study contrasting one subgroup versus another. For example, we showed that sex exhibits artifactual autosomal heritability in the presence of sex-differential participation bias. By performing a genome-wide association study of sex in approximately 3.3 million males and females, we identified over 158 autosomal loci spuriously associated with sex and highlighted complex traits underpinning differences in study participation between the sexes. For example, the body mass index–increasing allele at FTO was observed at higher frequency in males compared to females (odds ratio = 1.02, P = 4.4 × 10−36). Finally, we demonstrated how these biases can potentially lead to incorrect inferences in downstream analyses and propose a conceptual framework for addressing such biases. Our findings highlight a new challenge that genetic studies may face as sample sizes continue to grow. Genetic analyses identify widespread sex-differential participation bias in population-based studies and show how this bias can lead to incorrect inferences. These findings highlight new challenges for association studies as sample sizes continue to grow.

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  • Midparental PGS scores, family income, and parent education are factors correlated with participation in research.

    “factors correlated with participation in research50.”

    From Genetic correlates of phenotypic heterogeneity in autism (2022) · cites this paper as [50]

  • A key limiting factor for within-family MR is the lack of available data and the low power of these studies as a result.

    “A key limiting factor for within-family MR is the lack of available data and the low power of these studies as a result; however, a GWAS of family data for a range of phenotypes has recently been published, enabling further within-family MR in the future.169”

    From Mendelian randomization (2022) · cites this paper as [169]

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Authors
Pirastu, N., Cordioli, M., Nandakumar, P., Mignogna, G., Abdellaoui, A., Hollis, B., Kanai, M., Rajagopal, V. M., Parolo, P. D. B., Baya, N., Carey, C. E., Karjalainen, J., Als, T. D., Van der Zee, M. D., Day, F. R., Ong, K. K., Study, F., 23andMe Research Team, Agee, M., Aslibekyan, S., Bell, R. K., Bryc, K., Clark, S. K., Elson, S. L., Fletez-Brant, K., Fontanillas, P., Furlotte, N. A., Gandhi, P. M., Heilbron, K., Hicks, B., Huber, K. E., Jewett, E. M., Jiang, Y., Kleinman, A., Lin, K.-H., Litterman, N. K., Luff, M. K., McIntyre, M. H., McManus, K. F., Mountain, J. L., Mozaffari, S. V., Noblin, E. S., Northover, C. A. M., O’Connell, J., Petrakovitz, A. A., Pitts, S. J., Poznik, G. D., Sathirapongsasuti, J. F., Shelton, J. F., Shringarpure, S., Tian, C., Tung, J. Y., Tunney, R. J., Vacic, V., Wang, X., Zare, A., iPSYCH Consortium, Mortensen, P. B., Mors, O., Werge, T., Nordentoft, M., Hougaard, D. M., Bybjerg-Grauholm, J., Bækvad-Hansen, M., Morisaki, T., de Geus, E., Bellocco, R., Okada, Y., Børglum, A. D., Joshi, P., Auton, A., Hinds, D., Neale, B. M., Walters, R. K., Nivard, M. G., Perry, J. R. B., & Ganna, A.
Affiliations
  • University of Edinburgh (GB)
  • University of Helsinki (FI)
  • 23andMe (United States) (US)
  • Amsterdam UMC Location University of Amsterdam (NL)
  • University of Cambridge (GB)
  • Broad Institute (US)
  • Aarhus University (DK)
  • Karolinska Institutet (SE)
  • Aarhus University Hospital (DK)
  • Sankt Hans Hospital (DK)
  • University of Copenhagen (DK)
  • Statens Serum Institut (DK)
  • BioBank Japan (JP)
Corresponding author
  • Perry, John R. B.
  • Ganna, Andrea
Venue
Nature Genetics
Published
2021-04-22
Volume
53
Issue
5
Pages
663-671
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W3152758353
Cited by
251
References
74
Citations by year
2026: 25 · 2025: 29 · 2024: 53 · 2023: 54 · 2022: 55 · 2021: 21 · 2020: 14
FWCI
29.09
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion, other-oa)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nd)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion, cc-by)
  • VU Research Portal (acceptedVersion, other-oa)
  • PubMed Central (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • BOA (University of Milano-Bicocca) (submittedVersion, other-oa)
  • Työväentutkimus Vuosikirja (submittedVersion, other-oa)
  • Pure Amsterdam UMC (submittedVersion, cc-by)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, other-oa)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Funders
  • Pfizer
  • AstraZeneca
  • GlaxoSmithKline
  • Sanofi
  • Biogen
  • Celgene
  • Stichting Volksbond Rotterdam
  • Maze Therapeutics
  • ZonMw (849200011, 531003014)
  • Academy of Finland (323116)
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (191G.030, VI.Veni.191G.030, 849200011)
  • Lundbeckfonden (R155-2014-1724, R302-2018-2155, R248‐2017‐2003)
  • Jacobs Foundation
  • Business Finland (UH4386/31/2016, 4685/31/2016, 4386/31/2016, HUS 4685/31/2016 and UH 4386/31/2016, HUS 4685/31/2016)
  • Genentech
  • Medical Research Council (MC_UU_12015, MC_UU_12015/2, MC_PC_17228)
  • Janssen Biotech
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
Keywords
FTO, body mass index, complex traits, sample size
MeSH terms
Adult, Chromosomes, Human, Female, United Kingdom, Humans, Male, Sex Characteristics, Bias, Artifacts, Biological Specimen Banks, Sample Size, Polymorphism, Single Nucleotide, Inheritance Patterns, Genome-Wide Association Study, Genetic Loci

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