Short-Term Changes in the Prevalence of Probable Dementia: An Analysis of the 2011-2015 National Health and Aging Trends Study.

ABSTRACT: Objectives:Studies have reported decreasing dementia prevalence in recent decades in the United States. We explore with a new national data source whether declines have occurred since 2011, whether trends are attributable to shifts in dementia incidence or mortality, and whether trends are related to shifts in population composition or subgroup prevalence. Methods:We use the 2011-2015 National Health and Aging Trends Study (N = 27,547) to examine prevalence of probable dementia among the 70 and older population. To minimize the influence of potential learning effects on prevalence rates, we require individuals to meet probable dementia criteria at two consecutive rounds. Results:Prevalence of probable dementia declines over this period by 1.4% to 2.6% per year. Declines are concentrated am

SUBMITTER: Freedman VA 

PROVIDER: S-EPMC6018980 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature