{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T11:18:29Z","timestamp":1785928709545,"version":"3.56.0"},"reference-count":24,"publisher":"American Medical Association (AMA)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Cardiol"],"published-print":{"date-parts":[[2024,4,1]]},"abstract":"Importance<\/jats:title>Polygenic risk scores (PRSs) have proven to be as strong as or stronger than established clinical risk factors for many cardiovascular phenotypes. Whether this is true for aortic stenosis remains unknown.<\/jats:p><\/jats:sec>Objective<\/jats:title>To develop a novel aortic stenosis PRS and compare its aortic stenosis risk estimation to established clinical risk factors.<\/jats:p><\/jats:sec>Design, Setting, and Participants<\/jats:title>This was a longitudinal cohort study using data from the Million Veteran Program (MVP; 2011-2020), UK Biobank (2006-2010), and 6 Thrombolysis in Myocardial Infarction (TIMI) trials, including DECLARE-TIMI 58 (2013-2018), FOURIER (TIMI 59; 2013-2017), PEGASUS-TIMI 54 (2010-2014), SAVOR-TIMI 53 (2010-2013), SOLID-TIMI 52 (2009-2014), and ENGAGE AF-TIMI 48 (2008-2013), which were a mix of population-based and randomized clinical trials. Individuals from UK Biobank and the MVP meeting a previously validated case\/control definition for aortic stenosis were included. All individuals from TIMI trials were included unless they had a documented preexisting aortic valve replacement. Analysis took place from January 2022 to December 2023.<\/jats:p><\/jats:sec>Exposures<\/jats:title>PRS for aortic stenosis (developed using data from MVP and validated in UK Biobank) and other previously validated cardiovascular PRSs, defined either as a continuous variable or as low (bottom 20%), intermediate, and high (top 20%), and clinical risk factors.<\/jats:p><\/jats:sec>Main Outcomes<\/jats:title>Aortic stenosis (defined using International Classification of Diseases<\/jats:italic> or Current Procedural Terminology<\/jats:italic> codes in UK Biobank and MVP or safety event data in the TIMI trials).<\/jats:p><\/jats:sec>Results<\/jats:title>The median (IQR) age in MVP was 67 (57-73) years, and 135\u202f140 of 147\u202f104 participants (92%) were male. The median (IQR) age in the TIMI trials was 66 (54-78) years, and 45\u202f524 of 59\u202f866 participants (71%) were male. The best aortic stenosis PRS incorporated 5\u202f170\u202f041 single-nucleotide variants and was associated with aortic stenosis in both the MVP testing sample (odds ratio, 1.41; 95% CI, 1.37-1.45 per 1 SD PRS; P<\/jats:italic>\u2009=\u20094.6\u2009\u00d7\u200910\u2212116<\/jats:sup>) and TIMI trials (hazard ratio, 1.44; 95% CI, 1.27-1.62 per 1 SD PRS; P<\/jats:italic>\u2009=\u20093.2\u2009\u00d7\u200910\u22129<\/jats:sup>). Among genetic and clinical risk factors, the aortic stenosis PRS performed comparably to most risk factors besides age, and within a given age range, the combination of clinical and genetic risk factors was additive, providing a 3- to 4-fold increased gradient of risk of aortic stenosis. However, the addition of the aortic stenosis PRS to a model including clinical risk factors only improved risk discrimination of aortic stenosis by 0.01 to 0.02 (C index in MVP: 0.78 with clinical risk factors, 0.79 with risk factors and aortic stenosis PRS; C index in TIMI: 0.71 with clinical risk factors, 0.73 with risk factors and aortic stenosis PRS).<\/jats:p><\/jats:sec>Conclusions<\/jats:title>This study developed and validated 1 of the first aortic stenosis PRSs. While aortic stenosis genetic risk was independent from clinical risk factors and performed comparably to all other risk factors besides age, genetic risk resulted in only a small improvement in overall aortic stenosis risk discrimination beyond age and clinical risk factors. This work sets the stage for further development of an aortic stenosis PRS.<\/jats:p><\/jats:sec>","DOI":"10.1001\/jamacardio.2024.0011","type":"journal-article","created":{"date-parts":[[2024,2,28]],"date-time":"2024-02-28T16:33:05Z","timestamp":1709137985000},"page":"357","source":"Crossref","is-referenced-by-count":23,"title":["Novel Polygenic Risk Score and Established Clinical Risk Factors for Risk Estimation of Aortic Stenosis"],"prefix":"10.1001","volume":"9","author":[{"given":"Aeron M.","family":"Small","sequence":"first","affiliation":[{"name":"Cardiovascular Medicine Division, Department of Medicine, Brigham and Women\u2019s Hospital, Harvard Medical School, Boston, Massachusetts"},{"name":"Department of Cardiology, Boston Veterans Affairs Healthcare System, West Roxbury, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giorgio E. 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