{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T13:38:29Z","timestamp":1792157909034,"version":"4.4.0"},"reference-count":34,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","funder":[{"name":"AHA","award":["18SFRN34250007"],"award-info":[{"award-number":["18SFRN34250007"]}]}],"content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Stroke"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:sec>\n            <jats:title>BACKGROUND:<\/jats:title>\n            <jats:p>Because treatment with anticoagulants can prevent recurrent strokes, identification of patients at risk for incident atrial fibrillation (AF) after stroke is crucial. We aimed to investigate whether the addition of AF polygenic risk scores (PRSs) to existing clinical risk predictors could improve prediction of AF after stroke.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>METHODS:<\/jats:title>\n            <jats:p>Patients diagnosed with ischemic stroke at the Massachusetts General Hospital between 2003 and 2017 were included. Clinical AF risk was estimated using the Recalibrated Cohorts for Heart and Aging Research in Genomic Epidemiology Atrial Fibrillation model, and genetic risk was estimated using a contemporary AF PRS from 1\u2009093\u2009050 variants. Patients were divided into clinical and genetic risk tertiles. Cox proportional hazards models at different follow-up windows were fit, and C indices and percentile-based net reclassification index were used to determine the improvement of clinical risk models with the addition of AF PRS.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>RESULTS:<\/jats:title>\n            <jats:p>\n              Of 1004 stroke survivors, 900 (90%) were non-Hispanic White, 413 (41%) were female, and the mean age was 67 (SD, 14) years. Of 1004 survivors, 239 (23.8%) had prevalent AF and 87 of 765 (11.4%) remaining patients developed incident AF during 5 years of follow-up. AF PRS was associated with greater risk of incident AF after stroke (hazard ratio, 1.21 [95% CI, 0.97\u20131.50] per 1-SD increase), although the association was not statistically significant. PRS improved discrimination in the first month (area under the curve, 0.78 [95% CI, 0.70\u20130.82] versus 0.71 [95% CI, 0.60\u20130.82];\n              <jats:italic>P<\/jats:italic>\n              =0.05), with more modest estimates across longer time windows.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>CONCLUSIONS:<\/jats:title>\n            <jats:p>Addition of an AF PRS to clinical risk models may improve identification of individuals at risk of AF after stroke, particularly within the first month.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/strokeaha.124.050123","type":"journal-article","created":{"date-parts":[[2025,1,30]],"date-time":"2025-01-30T10:00:28Z","timestamp":1738231228000},"page":"878-886","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Predicting Atrial Fibrillation After Stroke by Combining Polygenic Risk Scores and Clinical Features"],"prefix":"10.1161","volume":"56","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3204-0309","authenticated-orcid":true,"given":"Reinier W.P.","family":"Tack","sequence":"first","affiliation":[{"name":"McCance Center for Brain Health (R.W.P.T., B.Y.Q.T., J.R.S., S.P., T.N.K., S.D.S., J.R., E.M., C.D.A.), Massachusetts General Hospital, Boston."},{"name":"Department of Neurology (R.W.P.T., B.Y.Q.T., J.R.S., S.P., T.N.K., S.D.S., J.R., E.M., C.D.A.), Massachusetts General Hospital, Boston."},{"name":"Center for Genomic Medicine (R.W.P.T., B.Y.Q.T., J.R.S., S.D.S., J.R., E.M., S.A.L.), Massachusetts General Hospital, Boston."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1824-9077","authenticated-orcid":true,"given":"Benjamin Y.Q.","family":"Tan","sequence":"additional","affiliation":[{"name":"McCance Center for Brain Health (R.W.P.T., B.Y.Q.T., J.R.S., S.P., T.N.K., S.D.S., J.R., E.M., C.D.A.), Massachusetts General Hospital, Boston."},{"name":"Department of Neurology (R.W.P.T., B.Y.Q.T., J.R.S., S.P., T.N.K., S.D.S., J.R., E.M., C.D.A.), Massachusetts General Hospital, Boston."},{"name":"Center for Genomic Medicine (R.W.P.T., B.Y.Q.T., J.R.S., S.D.S., J.R., E.M., S.A.L.), Massachusetts General Hospital, Boston."},{"name":"Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore (B.Y.Q.T.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-6540-480X","authenticated-orcid":true,"given":"Jasper R.","family":"Senff","sequence":"additional","affiliation":[{"name":"McCance Center for Brain Health (R.W.P.T., B.Y.Q.T., J.R.S., S.P., T.N.K., S.D.S., J.R., E.M., C.D.A.), Massachusetts General Hospital, Boston."},{"name":"Department of Neurology (R.W.P.T., B.Y.Q.T., J.R.S., S.P., T.N.K., S.D.S., J.R., E.M., C.D.A.), Massachusetts General Hospital, Boston."},{"name":"Center for Genomic Medicine (R.W.P.T., B.Y.Q.T., J.R.S., S.D.S., 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