1. From the Department of Neurology (J.F.M., K.M.B.), Mayo Clinic, Jacksonville, Fla; University of Alabama at Birmingham (P.M., V.J.H.), Birmingham, Ala; Wake Forest University School of Medicine (E.Z.S.), Winston-Salem, NC; University of Vermont (N.A.Z.), Burlington, VT; Department of Neurology (D.K.), University of Cincinnati, Cincinnati, Ohio; and University of Alabama at Birmingham (M.S., G.H.), Birmingham, Ala; for the REGARDS Investigators.