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Association of Chromosome 9p21 With Subsequent Coronary Heart Disease Events: A GENIUS-CHD Study of Individual Participant Data
UCL, Inst Cardiovasc Sci, Fac Populat Hlth Sci, London, England;St Bartholomews Hosp, Barts Heart Ctr, London, England.
UCL, Inst Cardiovasc Sci, Fac Populat Hlth Sci, London, England;UMC, Dept Cardiol, Div Heart & Lungs, Utrecht, Netherlands.
UMC, Dept Cardiol, Div Heart & Lungs, Utrecht, Netherlands.
Intertermt Med Ctr, Intermt Heart Inst, Salt Lake City, UT USA.
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2019 (English)In: Circulation: Genomic and Precision Medicine, ISSN 2574-8300, Vol. 12, no 4, article id e002471Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Genetic variation at chromosome 9p21 is a recognized risk factor for coronary heart disease (CHD). However, its effect on disease progression and subsequent events is unclear, raising questions about its value for stratification of residual risk.

METHODS: A variant at chromosome 9p21 (rs1333049) was tested for association with subsequent events during follow-up in 103 357 Europeans with established CHD at baseline from the GENIUS-CHD (Genetics of Subsequent Coronary Heart Disease) Consortium (73.1% male, mean age 62.9 years). The primary outcome, subsequent CHD death or myocardial infarction (CHD death/myocardial infarction), occurred in 13 040 of the 93 115 participants with available outcome data. Effect estimates were compared with case/control risk obtained from the CARDIoGRAMplusC4D consortium (Coronary Artery Disease Genome-wide Replication and Meta-analysis [CARDIoGRAM] plus The Coronary Artery Disease [C4D] Genetics) including 47 222 CHD cases and 122 264 controls free of CHD.

RESULTS: Meta-analyses revealed no significant association between chromosome 9p21 and the primary outcome of CHD death/myocardial infarction among those with established CHD at baseline (GENIUSCHD odds ratio, 1.02; 95% CI, 0.99-1.05). This contrasted with a strong association in CARDIoGRAMPlusC4D odds ratio 1.20; 95% CI, 1.18-1.22; P for interaction < 0.001 compared with the GENIUS-CHD estimate. Similarly, no clear associations were identified for additional subsequent outcomes, including all-cause death, although we found a modest positive association between chromosome 9p21 and subsequent revascularization (odds ratio, 1.07; 95% CI, 1.04-1.09).

CONCLUSIONS: In contrast to studies comparing individuals with CHD to disease-free controls, we found no clear association between genetic variation at chromosome 9p21 and risk of subsequent acute CHD events when all individuals had CHD at baseline. However, the association with subsequent revascularization may support the postulated mechanism of chromosome 9p21 for promoting atheroma development.

Place, publisher, year, edition, pages
2019. Vol. 12, no 4, article id e002471
Keywords [en]
chromosome, genetic, variation, myocardial infarction, risk factor, secondary prevention
National Category
Cardiac and Cardiovascular Systems Medical Genetics
Identifiers
URN: urn:nbn:se:uu:diva-383874DOI: 10.1161/CIRCGEN.119.002471ISI: 000466741600005PubMedID: 30897348OAI: oai:DiVA.org:uu-383874DiVA, id: diva2:1325068
Funder
EU, FP7, Seventh Framework Programme, 201668EU, European Research Council, 294609EU, Horizon 2020, 01KL1802NIH (National Institute of Health)EU, Horizon 2020, 692145Wellcome trustEU, FP7, Seventh Framework Programme, 223004Forte, Swedish Research Council for Health, Working Life and WelfareAvailable from: 2019-06-14 Created: 2019-06-14 Last updated: 2019-06-14Bibliographically approved

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