Skip to main content

Table 2 Observed and expected rates and detection rates for MCI and dementia by age, 2017 to 2019

From: Expected and diagnosed rates of mild cognitive impairment and dementia in the U.S. Medicare population: observational analysis

 

Age (in years)

65–69

70–74

75–79

80–84

≥ 85

Included beneficiaries

8,913,079

12,030,038

8,682,044

5,750,802

5,829,511

MCI

 Observed rate

0.008

0.011

0.017

0.023

0.026

 Expected rate

0.127

0.155

0.202

0.256

0.315

 Detection ratea

0.060

0.071

0.086

0.090

0.083

Dementia

 Observed rate

0.024

0.039

0.079

0.149

0.294

 Expected rate

0.028

0.041

0.072

0.122

0.256

 Detection ratea

0.831

0.942

1.110

1.221

1.147

  1. MCI Mild cognitive impairment
  2. aThe detection rate is the ratio of the observed to the expected rate, where the expected rate is computed based on a predictive model
Back to article page

Alzheimer's Research & Therapy

ISSN: 1758-9193