Featured Research

from universities, journals, and other organizations

Dementia On The Rise In Aging Populations

Date:
November 1, 2006
Source:
Public Library of Science
Summary:
Life expectancy continues to rise in most countries around the world, and in industrialized nations it is not uncommon for people to live well into their 90s. One consequence is that dementia will become much more common as a new study published in PLoS Medicine suggests.

Life expectancy continues to rise in most countries around the world, and in industrialized nations it is not uncommon for people to live well into their 90s. One consequence is that dementia will become much more common, as a new study reported by Fiona Matthews ,Carol Brayne and the Medical Research Council Cognitive Function and Ageing Study Investigators published in the open-access international medical journal PLoS Medicine suggests.

A widespread myth is that once a person reaches 80 and is mentally healthy, they are likely to die without mental incapacitation. The new results clearly show that this is not the case. The researchers followed a representative population of aged people over several years to estimate the risk of developing cognitive impairment or dementia near the end of life, and to determine whether factors such as education and social class, which may appear protective earlier in life, can ultimately prevent decline in mental functioning.

Using standardized assessments of cognitive status, the researchers interviewed people age 65 and over at six sites representing rural and urban areas in the UK. Interviews were conducted at regular intervals over 10 years. Of approximately 12,000 study participants who had died by the time of this report, just over 2,500 had an assessment for dementia within one year before dying. Of this group, those who died between ages 65 and 69 had a 6% chance of dying with dementia, and those who died above age 95 had a 58% chance of dying with dementia. When moderate or severe cognitive impairment were included, the rate in people above age 95 reached almost 80%. Women were more likely to develop dementia than men, even after taking into account the fact that women tend to live longer than men. A higher level of education was associated with only a slightly lower risk of dementia before death.

As Willem van Gool (Academic Medical Center, Amsterdam) states in an accompanying Perspective, despite the sobering nature of these data, there is room for slightly more hopeful interpretations that take into account the age of onset or duration of dementia rather than the absolute numbers. While many elderly people indeed wonder how likely it is that they will "lose their mind" before they die, if preventative measures manage to delay the onset of dementia, they would still yield enormous benefits. To prove that preventative measures work, however, will not be an easy task, and societies with aging populations should be prepared for large numbers of elderly patients with dementia.

Citation: Brayne C, Gao L, Dewey M, Matthews FE, Medical Research Council Cognitive Function and Ageing Study Investigators (2006) Dementia before death in ageing societies--The promise of prevention and the reality. PLoS Med 3(9): e397 (http://dx.doi.org/10.1371/journal.pmed.0030397)


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Cite This Page:

Public Library of Science. "Dementia On The Rise In Aging Populations." ScienceDaily. ScienceDaily, 1 November 2006. <www.sciencedaily.com/releases/2006/10/061031192543.htm>.
Public Library of Science. (2006, November 1). Dementia On The Rise In Aging Populations. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2006/10/061031192543.htm
Public Library of Science. "Dementia On The Rise In Aging Populations." ScienceDaily. www.sciencedaily.com/releases/2006/10/061031192543.htm (accessed October 20, 2014).

Share This



More Mind & Brain News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Court Ruling Means Kids' Online Activity Could Be On Parents

Court Ruling Means Kids' Online Activity Could Be On Parents

Newsy (Oct. 17, 2014) In a ruling attorneys for both sides agreed was a first of its kind, a Georgia appeals court said parents can be held liable for what kids put online. Video provided by Newsy
Powered by NewsLook.com
The Best Foods To Boost Your Mood

The Best Foods To Boost Your Mood

Buzz60 (Oct. 17, 2014) Feeling down? Reach for the refrigerator, not the medicine cabinet! TC Newman (@PurpleTCNewman) shares some of the best foods to boost your mood. Video provided by Buzz60
Powered by NewsLook.com
You Can Get Addicted To Google Glass, Apparently

You Can Get Addicted To Google Glass, Apparently

Newsy (Oct. 15, 2014) Researchers claim they’ve diagnosed the first example of the disorder in a 31-year-old U.S. Navy serviceman. Video provided by Newsy
Powered by NewsLook.com
First Confirmed Case Of Google Glass Addiction

First Confirmed Case Of Google Glass Addiction

Buzz60 (Oct. 15, 2014) A Google Glass user was treated for Internet Addiction Disorder caused from overuse of the device. Morgan Manousos (@MorganManousos) has the details on how many hours he spent wearing the glasses, and what his symptoms were. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins