Sex, Race, and Age Differences in Prevalence of Dementia in Medicare Claims and Survey Data.

ABSTRACT:

Objectives

This study provides the first comparison of trends in dementia prevalence in the U.S. population using 3 different dementia ascertainments/data sources: neuropsychological assessment, cognitive tests, and diagnosis codes from Medicare claims.

Methods

We used data from the nationally representative Health and Retirement Study and Aging, Demographics, and Memory Study, and a 20% random sample of Medicare beneficiaries. We compared dementia prevalence across the 3 sources by race, gender, and age. We estimated trends in dementia prevalence from 2006 to 2013 based on cognitive tests and diagnosis codes utilizing logistic regression.

Results

Dementia prevalence among older adults aged 70 and older in 2004 was 16.6% (neuropsychological assessment), 15.8% (cogniti

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC7887731 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature