Featured Research

from universities, journals, and other organizations

Mild cognitive impairment is associated with disability and neuropsychiatric symptoms

Date:
February 7, 2012
Source:
Public Library of Science
Summary:
In low- and middle-income countries, mild cognitive impairment -- an intermediate state between normal signs of cognitive aging, such as becoming increasingly forgetful, and dementia, which may or may not progress -- is consistently associated with higher disability and with neuropsychiatric symptoms but not with most socio-demographic factors, according to a large study.

In low- and middle-income countries, mild cognitive impairment -- an intermediate state between normal signs of cognitive aging, such as becoming increasingly forgetful, and dementia, which may or may not progress -- is consistently associated with higher disability and with neuropsychiatric symptoms but not with most socio-demographic factors, according to a large study published in this week's PLoS Medicine.

The established 10/66 Dementia Research Group interviewed approximately 15 000 people over 65 years of age who did not have dementia in eight low- and middle-incomes countries: Cuba, Dominican Republic, Peru, Mexico, Venezuela, Puerto Rico, China, and India.

Participants also completed standardized assessments of their mental and physical health and cognitive function and the researchers also interviewed relatives and carers for further details about any memory loss or other declines in cognitive function or the presence of any neuropsychiatric symptoms.

Then, using a clinical framework and a statistical model, the authors found that mild cognitive impairment with related memory problems was associated with disability, anxiety, apathy, and irritability but not with depression.

Increasing age or former education level did not seem to be linked but the authors found that men had a slightly higher prevalence of mild cognitive impairment than women. Furthermore, the prevalence of this type of mild cognitive impairment ranged from 0.8% in China to 4.3% in India.

The authors say: "This is one of the first studies, to our knowledge, to investigate the prevalence of [mild cognitive impairment with related memory problems] in [low- and middle-income countries], where the large majority of older people and people with dementia currently live."

They continue: "Differences in prevalence between countries were marked and ranged from 0.8% (China) to 4.3% (India), that is, greater than fivefold variation. After direct standardization for age, gender, and education, using the whole population as the reference, these differences were not markedly attenuated."

The authors conclude: "Further evaluation is needed of the associations with disability and neuropsychiatric symptoms since our findings do suggest higher than expected comorbidity and there are large absolute numbers of older people with [mild cognitive impairment with related memory problems] in these rapidly ageing and populous world regions."


Story Source:

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


Journal Reference:

  1. Ana Luisa Sosa, Emiliano Albanese, Blossom C. M. Stephan, Michael Dewey, Daisy Acosta, Cleusa P. Ferri, Mariella Guerra, Yueqin Huang, K. S. Jacob, Ivonne Z. Jiménez-Velázquez, Juan J. Llibre Rodriguez, Aquiles Salas, Joseph Williams, Isaac Acosta, Maribella González-Viruet, Milagros A. Guerra Hernandez, Li Shuran, Martin J. Prince, Robert Stewart. Prevalence, Distribution, and Impact of Mild Cognitive Impairment in Latin America, China, and India: A 10/66 Population-Based Study. PLoS Medicine, 2012; 9 (2): e1001170 DOI: 10.1371/journal.pmed.1001170

Cite This Page:

Public Library of Science. "Mild cognitive impairment is associated with disability and neuropsychiatric symptoms." ScienceDaily. ScienceDaily, 7 February 2012. <www.sciencedaily.com/releases/2012/02/120207202624.htm>.
Public Library of Science. (2012, February 7). Mild cognitive impairment is associated with disability and neuropsychiatric symptoms. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2012/02/120207202624.htm
Public Library of Science. "Mild cognitive impairment is associated with disability and neuropsychiatric symptoms." ScienceDaily. www.sciencedaily.com/releases/2012/02/120207202624.htm (accessed August 20, 2014).

Share This




More Mind & Brain News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) — Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Newsy (Aug. 19, 2014) — A study by King's College London says there's a link between how well kids draw at age 4 and how intelligent they are later in life. Video provided by Newsy
Powered by NewsLook.com
Mental, Neurological Disabilities Up 21% Among Kids

Mental, Neurological Disabilities Up 21% Among Kids

Newsy (Aug. 18, 2014) — New numbers show a decade's worth of changes in the number of kids with disabilities. They suggest mental disabilities are up; physical ones are down. Video provided by Newsy
Powered by NewsLook.com
Fake Weed Wreaks Havoc In New Hampshire

Fake Weed Wreaks Havoc In New Hampshire

Newsy (Aug. 17, 2014) — New Hampshire's governor declared a state of emergency after more than 40 overdoses of synthetic marijuana in one week throughout the state. Video provided by Newsy
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:
from the past week

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