Cited by 378Genetic Associations and EpidemiologyDiabetes, Cardiovascular Risks, and LipoproteinsNutrition, Genetics, and Disease

Genetic Association of Waist-to-Hip Ratio With Cardiometabolic Traits, Type 2 Diabetes, and Coronary Heart Disease

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Emdin, Connor A., Khera, Amit V., Natarajan, Pradeep, Klarin, Derek, Zekavat, Seyedeh M., Hsiao, Allan J., Kathiresan, Sekar·2017·JAMA

Abstract

Importance: In observational studies, abdominal adiposity has been associated with type 2 diabetes and coronary heart disease (CHD). Whether these associations represent causal relationships remains uncertain. Objective: To test the association of a polygenic risk score for waist-to-hip ratio (WHR) adjusted for body mass index (BMI), a measure of abdominal adiposity, with type 2 diabetes and CHD through the potential intermediates of blood lipids, blood pressure, and glycemic phenotypes. Design, Setting, and Participants: A polygenic risk score for WHR adjusted for BMI, a measure of genetic predisposition to abdominal adiposity, was constructed with 48 single-nucleotide polymorphisms. The association of this score with cardiometabolic traits, type 2 diabetes, and CHD was tested in a mendelian randomization analysis that combined case-control and cross-sectional data sets. Estimates for cardiometabolic traits were based on a combined data set consisting of summary results from 4 genome-wide association studies conducted from 2007 to 2015, including up to 322 154 participants, as well as individual-level, cross-sectional data from the UK Biobank collected from 2007-2011, including 111 986 individuals. Estimates for type 2 diabetes and CHD were derived from summary statistics of 2 separate genome-wide association studies conducted from 2007 to 2015 and including 149 821 individuals and 184 305 individuals, respectively, combined with individual-level data from the UK Biobank. Exposures: Genetic predisposition to increased WHR adjusted for BMI. Main Outcomes and Measures: Type 2 diabetes and CHD. Results: Among 111 986 individuals in the UK Biobank, the mean age was 57 (SD, 8) years, 58 845 participants (52.5%) were women, and mean WHR was 0.875. Analysis of summary-level genome-wide association study results and individual-level UK Biobank data demonstrated that a 1-SD increase in WHR adjusted for BMI mediated by the polygenic risk score was associated with 27-mg/dL higher triglyceride levels, 4.1-mg/dL higher 2-hour glucose levels, and 2.1-mm Hg higher systolic blood pressure (each P < .001). A 1-SD genetic increase in WHR adjusted for BMI was also associated with a higher risk of type 2 diabetes (odds ratio, 1.77 [95% CI, 1.57-2.00]; absolute risk increase per 1000 participant-years, 6.0 [95% CI, CI, 4.4-7.8]; number of participants with type 2 diabetes outcome, 40 530) and CHD (odds ratio, 1.46 [95% CI, 1.32-1.62]; absolute risk increase per 1000 participant-years, 1.8 [95% CI, 1.3-2.4]; number of participants with CHD outcome, 66 440). Conclusions and Relevance: A genetic predisposition to higher waist-to-hip ratio adjusted for body mass index was associated with increased risk of type 2 diabetes and coronary heart disease. These results provide evidence supportive of a causal association between abdominal adiposity and these outcomes.

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  • MR is being widely applied to quantitative traits with the aim of discovering modifiable risk factors for disease that are causal and amenable to therapeutic modification.

    “With increasing availability of large-scale phenotyping (and genotyping), MR is being widely applied to quantitative traits (e.g. markers or adiposity, such as body mass index 13-16 ; blood lipids such as HDL-cholesterol 17-19 ; inflammation-related proteins such as interleukin-6 receptor 20,21 12 ) with the aim of discovering modifiable risk factors for disease that are causal and amenable to the”

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Authors
Emdin, C. A., Khera, A. V., Natarajan, P., Klarin, D., Zekavat, S. M., Hsiao, A. J., & Kathiresan, S.
Affiliations
  • Broad Institute (US)
  • Massachusetts Institute of Technology (US)
Corresponding author
Kathiresan, Sekar
Venue
JAMA
Published
2017-02-14
Volume
317
Issue
6
Pages
626
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2589093959
Cited by
378
References
38
Citations by year
2026: 14 · 2025: 38 · 2024: 30 · 2023: 38 · 2022: 54 · 2021: 45 · 2020: 37 · 2019: 37 · 2018: 63 · 2017: 21
FWCI
28.61
Type
journal article
Language
en
Open access
Locations
  • JAMA (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5t32hl007734-30, KL2TR001100)
  • National Heart, Lung, and Blood Institute (R01HL127564, T-32HL007734)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Nutrition, Genetics, and Disease
Keywords
waist-to-hip ratio, abdominal fat, type 2 diabetes, coronary artery disease, polygenic risk score, Mendelian randomization, cardiometabolic traits, triglycerides, blood pressure, glycemic traits, causal inference, single nucleotide polymorphisms, body mass index adjustment, genetic susceptibility, UK Biobank
MeSH terms
Blood Glucose, Blood Pressure, Coronary Disease, Cross-Sectional Studies, Diabetes Mellitus, Type 2, Female, Humans, Male, Middle Aged, Triglycerides, Body Mass Index, Odds Ratio, Case-Control Studies, Polymorphism, Single Nucleotide, Waist-Hip Ratio, Obesity, Abdominal, Mendelian Randomization Analysis

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