Cited by 2,953Genetic Associations and EpidemiologyGenetic and phenotypic traits in livestockGenomics and Rare Diseases

Genome-wide polygenic scores for common diseases identify individuals with risk equivalent to monogenic mutations

Open access
Khera, Amit V., Chaffin, Mark, Aragam, Krishna G., Haas, Mary E., Roselli, Carolina, Choi, Seung Hoan, Natarajan, Pradeep, Lander, Eric S. +3 more·2018·Nature Genetics

Published version of a preprint

Abstract

A key public health need is to identify individuals at high risk for a given disease to enable enhanced screening or preventive therapies. Because most common diseases have a genetic component, one important approach is to stratify individuals based on inherited DNA variation1. Proposed clinical applications have largely focused on finding carriers of rare monogenic mutations at several-fold increased risk. Although most disease risk is polygenic in nature2–5, it has not yet been possible to use polygenic predictors to identify individuals at risk comparable to monogenic mutations. Here, we develop and validate genome-wide polygenic scores for five common diseases. The approach identifies 8.0, 6.1, 3.5, 3.2, and 1.5% of the population at greater than threefold increased risk for coronary artery disease, atrial fibrillation, type 2 diabetes, inflammatory bowel disease, and breast cancer, respectively. For coronary artery disease, this prevalence is 20-fold higher than the carrier frequency of rare monogenic mutations conferring comparable risk6. We propose that it is time to contemplate the inclusion of polygenic risk prediction in clinical care, and discuss relevant issues. Genome-wide polygenic risk scores derived from GWAS data for five common diseases can identify subgroups of the population with risk approaching or exceeding that of a monogenic mutation.

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Crossref · 10.1038/s41588-018-0183-z

Cites

47 of 47 references verified0 citation errors · 0 not checkable

Statistics

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Claims the paper makes

0 of 18 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    Even in the middle-aged study population, clinicians could not identify the 8% at ≥3-fold risk based on GPSCAD without genotype information.

    “Moreover, even for our middle-aged study population, practicing clinicians could not identify the 8% of individuals at ≥3-fold risk based on GPSCAD in the absence of genotype information (Supplementary Table 8).”
    Quote in the paperSubstantial claim
  • Findingown data

    The top 1% of the GPS distribution for type 2 diabetes had 3.30-fold risk.

    “The polygenic predictor identified 3.5% of the population at ≥3-fold risk and the top 1% had 3.30-fold risk. (Tables 2 & 3).”
    Quote in the paperSubstantial claim
  • Findingown data

    0.1% of women had ≥5-fold risk of breast cancer.

    “Moreover, 0.1% of women had ≥5-fold risk of breast cancer—corresponding to a breast cancer prevalence of 19.0% in this group versus 4.2% in the remaining 99.9% of the distribution.”
    Quote in the paperSubstantial claim
  • Findingown data

    The GPS approach identifies 6.1% of the population at greater than three-fold increased risk for atrial fibrillation.

    “The polygenic predictor identified 6.1% of the population at ≥3-fold risk and the top 1% had 4.63-fold risk (Tables 2 & 3).”
    Quote in the paperSubstantial claim
  • Findingown data

    Breast cancer prevalence was 19.0% in women with ≥5-fold GPS risk versus 4.2% in the remaining 99.9%.

    “Moreover, 0.1% of women had ≥5-fold risk of breast cancer—corresponding to a breast cancer prevalence of 19.0% in this group versus 4.2% in the remaining 99.9% of the distribution.”
    Quote in the paperSubstantial claim
  • May combine two claims. 8
  • Classified as probably not a substantial claim. 6
  • May combine two claims.

    Findingown data

    For CAD, the polygenic predictors had AUC 0.79-0.81 in the validation set, with the best predictor GPSCAD involving 6,630,150 variants.

    “The predictors had AUC ranging from 0.79 – 0.81 in the validation set, with the best predictor (GPSCAD) involving 6,630,150 variants (Supplementary Table 1).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Across the population, GPSCAD is normally distributed and empirical CAD risk rises from 0.8% in the lowest percentile to 11.1% in the highest percentile.

    “Across the population, GPSCAD is normally distributed with the empirical risk of CAD rising sharply in the right tail of the distribution, from 0.8% in the lowest percentile to 11.1% in the highest percentile (Figure 2).”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Study design and conductreasoning

    The analysis was restricted to white British ancestry individuals.

    “In order to analyze individuals with a relatively homogenous ancestry and owing to small percentages of non-British individuals, the present analysis was restricted to the white British ancestry individuals.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisereasoning

    Polygenic scores can be readily calculated for many diseases simultaneously from a single genotyping array, unlike monogenic mutation identification which requires sequencing specific genes.

    “Whereas identifying carriers of rare monogenic mutations requires sequencing of specific genes and careful interpretation of the functional effects of mutations found, polygenic scores can be readily calculated for many diseases simultaneously, based on data from a single genotyping array.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    The testing dataset comprised 288,978 UK Biobank Phase 2 participants distinct from the validation dataset.

    “The testing dataset was comprised of 288,978 UK Biobank Phase 2 participants distinct from those in the validation dataset described above.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Study design and conductown data

    Validation and testing were performed in the UK Biobank population.

    “Our validation and testing was performed in the UK Biobank population.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisereasoning

    Initial GPS efforts were hampered by small GWAS size, limited computational methods, and lack of large validation datasets.

    “These initial efforts were hampered by three challenges: (i) the small size of initial genome-wide association studies (GWAS), which affected the precision of the estimated impact of individual variants on disease risk; (ii) limited computational methods for creating GPS; and (iii) lack of large datasets needed to validate and test GPS.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data

    For a number of common diseases, polygenic risk scores can now identify a substantially larger fraction of the population than rare monogenic mutations, at comparable or greater disease risk.

    “The results above show that, for a number of common diseases, polygenic risk scores can now identify a substantially larger fraction of the population than found by rare monogenic mutations, at comparable or greater disease risk.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The vast majority of common disease occurs in individuals without rare monogenic mutations.
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    UK Biobank volunteers tended to be healthier than the general population.

    “Individuals who volunteered for the UK Biobank tended to be more healthy than the general population;27”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [27] Fry, A. et al. Comparison of sociodemographic and health-related characteristics of UK Biobank participants with those of the general population. Am. J. Epidemiol. 186, 1026–1034 (2017). source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationcitation

    The risk associated with a high polygenic score may not reflect a single underlying mechanism but rather the combined influence of multiple pathways.

    “In both cases, it is important to recognize that the risk associated with a high polygenic score may not reflect a single underlying mechanism, but rather the combined influence of multiple pathways.28”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [28] Khera, A. V. & Kathiresan, S. Is coronary atherosclerosis one disease or many? Setting realistic expectations for precision medicine. Circulation 135, 1005–1007 (2017). source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    High polygenic risk for CAD may be offset by adherence to a healthy lifestyle or cholesterol-lowering statin therapy.

    “For example, we previously showed that a high polygenic risk for CAD may be offset by either of two interventions: adherence to a healthy lifestyle or cholesterol-lowering therapy with statin medications.19–21”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [19] Khera, A. V. et al. Genetic risk, adherence to a healthy lifestyle, and coronary disease. N. Engl. J. Med. 375, 2349–2358 (2016). source

      Not checked in the free run.

    • cites [20] Mega, J. L. et al. Genetic risk, coronary heart disease events, and the clinical benefit of statin therapy: an analysis of primary and secondary prevention trials. Lancet 385, 2264–2271 (2015). source

      Not checked in the free run.

    • cites [21] Natarajan, P. et al. Polygenic risk score identifies subgroup with higher burden of atherosclerosis and greater relative benefit from statin therapy in the primary prevention setting. Circulation 135, 2091–2101 (2017). source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Study design and conductnone given

    UK Biobank samples were not included in any of the five discovery GWAS studies.

    “UK Biobank samples were not included in any of the five discovery GWAS studies.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    A familial hypercholesterolemia mutation is present in 0.4% of the population and confers up to 3-fold increased risk for coronary artery disease.

    “An important example is the presence of a familial hypercholesterolemia mutation in 0.4% of the population, which confers an up to 3-fold increased risk for coronary artery disease (CAD).6”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [6] Abul-Husn, N. S. et al. Genetic identification of familial hypercholesterolemia within a single U.S. health care system. Science 354, pii: aaf7000 (2016). source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    The p.E508K missense mutation in HNF1A has carrier frequency 0.1% in the general population and 0.7% in Latinos, and confers up to 5-fold increased risk for type 2 diabetes.

    “Another example is the p.E508K missense mutation in HNF1A, with carrier frequency of 0.1% of the general population and 0.7% of Latinos,8 which confers up to 5-fold increased risk for type 2 diabetes.9”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [8] Lek, M. et al. Analysis of protein-coding genetic variation in 60,706 humans. Nature 536, 285–291 (2016). source

      Not checked in the free run.

    • cites [9] Estrada, K. et al. Association of a low-frequency variant in HNF1A with type 2 diabetes in a Latino population. JAMA 311, 2305–2314 (2014). source

      Not checked in the free run.

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  • The paper relies on this without support.

    The vast majority of common disease occurs in individuals without rare monogenic mutations.

    “Although ascertainment of monogenic mutations can be highly relevant for carriers and their families, the vast majority of disease occurs in those without such mutations.”
1 of 1

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Integrated models of PRS together with other lifestyle and clinical factors have enabled clinicians to more accurately quantify the risk of heart attack.

    “Additionally, integrated models of PRS together with other lifestyle and clinical factors have enabled clinicians to more accurately quantify the risk of heart attack for patients;”

    From Clinical use of current polygenic risk scores may exacerbate health disparities (2019) · cites this paper as [5]

    The paper reports that its polygenic score identified people at elevated coronary artery disease risk (Abstract; page not provided). It describes combining genetic risk with clinical and environmental factors as a future issue, not an integrated model already used by clinicians to improve heart-attack risk estimates. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • A polygenic burden of LDL-increasing SNPs can confer monogenic-equivalent risk of cardiovascular disease, with polygenic scores improving clinical models for risk assessment and statin prescription that can reduce coronary heart disease and improve healthcare delivery efficiency.

    “This enthusiasm is driven by observations that a polygenic burden of LDL-increasing SNPs can confer monogenic-equivalent risk of cardiovascular disease, with polygenic scores improving clinical models for risk assessment and statin prescription that can reduce coronary heart disease and improve healthcare delivery efficiency5–7.”

    From Clinical use of current polygenic risk scores may exacerbate health disparities (2019) · cites this paper as [5]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured
  • Using polygenic scores, it is now possible to combine information from millions of genomic variants to identify people whose overall polygenic risk of coronary artery disease is as high as that of patients with monogenic lipid disorders such as familial hypercholesterolemia.

    “Using polygenic scores, it is now possible to combine information from millions of genomic variants to identify people whose overall polygenic risk of coronary artery disease is as high as that of patients with monogenic lipid disorders such as familial hypercholesterolemia [23].”

    From Interpreting polygenic scores, polygenic adaptation, and human phenotypic differences (2019) · cites this paper as [23]

    Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured
  • Polygenic scores have contributed new approaches to risk prediction for adverse phenotypes related to heart disease.

    “For example, they have contributed new approaches to risk prediction for adverse phenotypes related to heart disease [21–23].”
  • GWAS findings have increasing translational impact through identification of novel therapeutic targets, prioritization and deprioritization of existing targets, and development of polygenic scores that quantify individual genetic risk.

    “As described below, findings from GWAS have increasing translational impact through identification of novel therapeutic targets67, prioritization (and deprioritization) of existing ones68 and development of polygenic scores that quantify individual genetic risk69.”

    From A brief history of human disease genetics (2020) · cites this paper as [69]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Testing cohort size differs by 700 participants

    Minor

    The statistical-analysis section gives the testing dataset as 288,278 participants, whereas the testing-cohort section gives 288,978. The text does not describe an additional exclusion that would explain the difference.

1 of 1

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Authors
Khera, A. V., Chaffin, M., Aragam, K. G., Haas, M. E., Roselli, C., Choi, S. H., Natarajan, P., Lander, E. S., Lubitz, S. A., Ellinor, P. T., & Kathiresan, S.
Affiliations
Broad Institute (US)
Corresponding author
Kathiresan, Sekar
Venue
Nature Genetics
Published
2018-08-13
Volume
50
Issue
9
Pages
1219-1224
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2886752110
Cited by
2,953
References
46
Citations by year
2026: 276 · 2025: 290 · 2024: 363 · 2023: 362 · 2022: 433 · 2021: 411 · 2020: 451 · 2019: 307 · 2018: 57 · 2013: 1
FWCI
189.86
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, other-oa)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
  • PMC
Funders
  • Doris Duke Charitable Foundation (2014105)
  • Massachusetts General Hospital (HL007208)
  • Harvard Catalyst (TR001100)
  • Vertex Pharmaceuticals
  • KR Foundation
  • National Institutes of Health (KL2TR001100, HL0-07734, HL007208, T32-HL007734)
  • National Heart, Lung, and Blood Institute (R01HL127564, HL007208, HL127564, R01HL128914, T-32HL007734, K08HL140203, HL007734, K23HL114724, K24HL105780, R01HL142711, R01HL092577, T32HL007208, R01HL139731)
  • National Human Genome Research Institute (UM1HG008895)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
polygenic risk score, monogenic mutations, common diseases, coronary artery disease, atrial fibrillation, type 2 diabetes, inflammatory bowel disease, breast cancer, high-risk individuals, clinical risk stratification
MeSH terms
Adult, Aged, Disease, Female, Humans, Male, Middle Aged, Mutation, Risk Factors, Genetic Predisposition to Disease, Multifactorial Inheritance, Polymorphism, Single Nucleotide, Genome-Wide Association Study

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