P1‐310: PATTERNS OF CHANGE IN DEPENDENCE LEVELS FOR COMMUNITY‐DWELLING ALZHEIMER'S PATIENTS: 36‐MONTH RESULTS FROM THE GERAS OBSERVATIONAL STUDY. (1st July 2006) - Andrews, Jeffrey Scott; Ball, Daniel; Ye, Wenyu; Gauthier, Serge; Rentz, Dorene M.; Stern, Yaakov