A Risk Score for Predicting Stroke or Death in Individuals With New-Onset Atrial Fibrillation in the Community

Framingham Heart Study,Framingham(DrsWang,Massaro,Levy,Vasan,Wolf,D’Agostino, Larson, Kannel, and Benjamin); Cardiol-ogy Division, Massachusetts General Hospital, Har-vard Medical School (Dr Wang); Divisions of Cardi-ology and Epidemiology, Beth Israel DeaconessHospital, Harvard Medical School (Dr Levy); Depart-ment of Mathematics, Boston University (Drs Mas-saro and D’Agostino), Boston; National Heart, Lung,andBloodInstitute,Bethesda,Md(DrLevy);andDe-partment of Neurology (Dr Wolf), Division of Cardi-ology (Drs Levy, Vasan, and Benjamin), and Depart-ment of Preventive Medicine (Drs Levy, D’Agostino,Wolf,Kannel,andBenjamin),BostonUniversitySchoolof Medicine, Boston.