P4‐637: EXAMINING THE ROLE OF CIGARETTE SMOKING AND CESSATION ON COMBINED RISK OF INCIDENT DEMENTIA, NURSING HOME PLACEMENT, AND DEATH IN COGNITIVELY HEALTHY AND MILD COGNITIVELY IMPAIRED ADULTS. (1st July 2019) - Johnson, Adrienne L.; Nystrom, Naomi C.; Piper, Megan E.; Cook, Jessica; Norton, Derek L.; Zuelsdorff, Megan; Wyman, Mary F.; Benton, Susan Flowers; Lambrou, Nickolas H.; O'Hara, John; Chin, Nathaniel A.; Asthana, Sanjay; et al.