P3‐582: TOBACCO EXPOSURE AND CESSATION IS ASSOCIATED WITH INCIDENT DEMENTIA AND NURSING HOME PLACEMENT. (1st July 2006) - Nystrom, Naomi C.; Cook, Jessica; Norton, Derek L.; Zuelsdorff, Megan; Wyman, Mary F.; Benton, Susan Flowers; Carlsson, Cynthia M.; Johnson, Sterling C.; Asthana, Sanjay; Gleason, Carey E.