Related Experiment Video
Updated: Oct 7, 2025

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Estimation of dementia prevalence at the local level in the United States
Erin E Bennett1, Abraham Kwan1, Kan Z Gianattasio1
1Department of Epidemiology, Milken Institute School of Public Health George Washington University Washington District of Columbia USA.
Introduction:
Ensuring adequate and equitable distribution of resources to support persons living with dementia relies on understanding the burden and distribution of dementia in a population. Our goal was to develop an approach to estimate dementia prevalence at the local level in the United States using publicly available data.
Methods:
Our approach combines publicly available data on dementia prevalence and demographic data from the US Census to estimate dementia prevalence. We illustrate this approach by estimating dementia prevalence in persons aged 65 and older in Philadelphia, PA; Chicago, IL; and Atlanta, GA.
Results:
Overall, we estimate the prevalence of dementia among those 65 and older to be 11.9% in Philadelphia, 11.8% Chicago, and 12.3% in Atlanta. Estimates across Philadelphia localities vary from 9.3% to 15.9%.
Discussion:
Our approach provides a cost-effective method to generate estimates of dementia prevalence at the local level.
Highlights:
Brain health needs assessments require understanding of local dementia prevalence.Our approach can be used to estimate dementia prevalence in individual communities.This information can inform decisions about distribution of resources.
Related Concept Videos
Dementia
The progression of dementia is generally gradual....
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
Diagnostic and Statistical Manual of Mental Disorders (DSM)
Estimating Population Standard Deviation
Estimating Population Mean with Known Standard Deviation
The confidence interval estimate will have the form as follows:
(point estimate - error bound, point estimate +...

