Dementia rate in extreme elderly population

February, 2010

Data from The 90+ Study has revealed a sharply increasing incidence rate for dementia, from nearly 13% per year for 90-94, to over 40% in the 100+ age group.

Data from 330 participants in The 90+ Study, of whom 70% were women, has revealed an overall annual incidence rate of 18.2% for dementia, rising from 12.7% per year in the 90-94 age group, to 21.2% in the 95-99 age group and 40.7% per year in the 100+ age group. 60% of the cases were attributed to Alzheimer's disease, 22% vascular dementia, 9% mixed Alzheimer’s and vascular dementia and 9% other/unknown. Unlike previous findings, rates were very similar for men and women.

http://www.eurekalert.org/pub_releases/2010-02/w-die022410.php

Reference:

[183] Corrada, M. M., Brookmeyer R., Paganini-Hill A., Berlau D., & Kawas C. H.
(2010). Dementia incidence continues to increase with age in the oldest old: The 90+ study.
Annals of Neurology. 67(1), 114 - 121.

seniors

dementia prevalence

Alzheimers

Related News

Alzheimer's memory problems originate with oligomers not plaques

While everyone agrees that amyloid-beta protein is part of the problem, not everyone agrees that amyloid plaques are the cause (or one of them) of Alzheimer’s. Other forms of amyloid-beta have been pointed to, including floating clumps called oligomers or ADDLs.

More evidence for benefits of Rapamycin

A few months ago, I reported on an exciting finding that

New guideline on when people with Alzheimer's disease should stop driving

The American Academy of Neurology has updated its guidelines on when people with dementia should stop driving.

New gene associated with increased risk of Alzheimer's

Another gene has been identified that appears to increase risk of Alzheimer’s. The gene, MTHFD1L, is located on chromosome six.

Losing muscle mass early sign of Alzheimer’s

Previous research has found that unexplained weight loss is an early sign of Alzheimer's.

Memory problems not the only predictor of later mild cognitive impairment

Amnestic mild cognitive impairment often leads to Alzheimer's disease, but what predicts aMCI?

Apple juice improves behavior in Alzheimer's patients

A pilot study involving 21 institutionalized individuals with moderate-to-severe Alzheimer’s found that, although drinking two 4-oz glasses of apple juice daily for a month produced no change in the Dementia Rating Scale or in the Activities of Daily Living measure, there was a significant (27%)

TMS improves language comprehension in Alzheimer's sufferers

A pilot study involving 10 patients with moderate Alzheimer's disease, of whom half were randomly assigned to the treatment, has found that two weeks of receiving daily (25 minute) periods of repetitive transcranial magnetic stimulation to the prefrontal

Common Alzheimer's medication helps skills necessary for safe driving

A study involving outpatients with early stage Alzheimer’s found that their performance on some computerized tests of executive function and visual attention, including a simulated driving task, improved significantly after three months of taking

Cognitive ability, not age, predicts risky decisions

A study involving 54 older adults (66-76) and 58 younger adults (18-35) challenges the idea that age itself causes people to become more risk-averse and to make poorer decisions.

Pages