P2‐594: IDEAL CARDIOVASCULAR HEALTH, COGNITIVE DECLINE AND RISK OF DEMENTIA IN OLDER PERSONS FROM THE COMMUNITY: THE THREE‐CITY STUDY. (1st July 2006) - Samieri, Cecilia; Perier, Marie-Cécile; Helmer, Catherine; Berr, Claudine; Tzourio, Christophe; Empana, Jean-Philippe