Navigation Links
Cognitive problems common among non-demented elderly
Date:2/6/2012

Both subjective and objective cognitive impairment are highly common among non-demented elderly Swedes, with an overall prevalence of 39 percent and 25 percent respectively, according to a nationwide twin study by researchers at the Aging Research Center of Karolinska Institutet, Sweden. The study confirms higher education as a major protective factor and stresses the importance of environmental aspects over genes in mild cognitive disorders in old age.

In the current study, which is published in the Journal of Alzheimer's Disease, the researchers investigated the distribution and heritability of subjective and objective cognitive impairment in the population by using data from 11,926 twins aged 65 and above in the Swedish Twin Registry. Objective cognitive impairment involves a reduced performance on tests measuring different cognitive abilities, such as memory and attention, while subjective cognitive impairment involves the same type of problems but experienced only at the subjective level. The researchers then found, that together subjective and objective cognitive impairment affect the majority of non-demented Swedish elderly (joint prevalence 64 percent), suggesting that mild cognitive disorders may represent a major public health concern even in the absence of dementia.

The study also highlights that subjective and objective cognitive impairment has distinct socio-demographic profiles. Specifically, when compared with people with objective cognitive impairment, elderly with subjective complaints only were more educated, more likely to be married, and to have higher socio-economic status pointing to a possible protective effect of this favorable life conditions. Co-twin control analysis showed that the detrimental effect of lower educational level on cognitive functioning is largely independent by genetic background and early life environment.

"This underlies the relevance of adult life educational achievements for preserved cognitive functioning in older life", says Dr Barbara Caracciolo, who led the study at the Aging Research Center in Stockholm.

Regarding the heritability of subjective and objective cognitive impairment, the researchers observed concordance rates of 63 percent and 52 percent in monozygotic twins, 63 percent and 50 percent in dizygotic same-sex twins, and 42 percent and 29 percent in dizygotic unlike-sex twins. The lack of substantial differences in concordance rates between genetically identical (monozygotic) and or non-identical (dizygotic) twins suggests that environmental influences rather than genetic background play the major role in the occurrence of mild cognitive disorders in non-demented elderly.


'/>"/>

Contact: Press Office
pressinfo@ki.se
46-852-486-077
Karolinska Institutet
Source:Eurekalert

Related medicine news :

1. Drug May Ease Cognitive Effects of Huntingtons
2. Cognitive Skills May Shrink With Tamoxifen
3. Overweight middle-aged adults at greater risk for cognitive decline in later life
4. Chronic Back Pain Soothed by Cognitive Behavioral Therapy
5. Predisposing factors for conversion of mild cognitive impairment to AD identified
6. New Study Finds Cholesterol-Related Gene Associated with Mild Cognitive Impairment, a Precursor of Alzheimer's Disease
7. HAPPYneuron Launches 'Vital' Brain Gym: Cognitive Exercises within SCAN Health Plan's Mobile Resource Center for Seniors
8. Mouli Cohen On Technology For Seniors' Cognitive Care
9. Childrens cognitive ability can be affected by mothers exposure to urban air pollutants
10. Self-Psychology Allows You to Carry A Cognitive Behavioral Therapist On Your iPhone
11. NIH awards $2.7-million grant to Kent State to study cognitive impairment in heart failure patients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/9/2016)... ... ... Cellairis is a worldwide mobile device and computer repair franchise that is known ... Samsung Galaxy devices with premium parts and accessories. Cellairis has recently set-up for business ... customers. While customers do their shopping, Cellairis can accomplish a number of mobile device ...
(Date:12/9/2016)... ... ... An inventor from Cana, Va., wanted to fulfill the need for a ... , The patent-pending SAFETY STRAP FOR AMPUTEES improves accessibility. It eliminates discrimination. It is ... in a matter of minutes, or even seconds. The SAFETY STRAP FOR AMPUTEES is ...
(Date:12/9/2016)... ... December 09, 2016 , ... The Pennsylvania Athletic Trainers’ ... during the summer of 2016. The program was made possible by a Pennsylvania ... Department of Health and Human Services Administration. The broadcast, Use Your Head: ...
(Date:12/8/2016)... ... December 08, 2016 , ... ZyDoc , a New ... Conventional Data Capture Methods for Input to Electronic Health Records: A Comparative Usability ... the comparative usability study demonstrate that a dictation-based method (“NLP Entry”) using ZyDoc’s ...
(Date:12/8/2016)... ... December 08, 2016 , ... David J. Dykeman , ... Greenberg Traurig, LLP, will speak at DeviceTalks West, Dec. 12, 2016, at the Fairmont ... and attorneys from the firm’s global Life Sciences & Medical Technology Group have been ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... 2016 IRIDEX Corporation (NASDAQ: IRIX ) ... of common stock, $0.01 par value (the "Offering" with such ...  The final terms of the Offering will depend on market ... can be no assurance as to whether or when the ... the net proceeds it will receive from this offering for ...
(Date:12/8/2016)... , Dec. 8, 2016  The global biosurgery market ... during the forecast period of 2016 to 2021. The ... 2021 from USD 18.21 billion in 2016. The market ... incidences of sports related injuries and spinal problems, increasing ... need of effective blood loss management. In ...
(Date:12/8/2016)... FLINT, Mich. , Dec. 8, 2016  Diplomat Pharmacy, Inc. ... as a 2016 Top Workplaces National Standard. ... . ... Diplomat Specialty Pharmacy (PRNewsFoto/Diplomat Pharmacy, Inc.) ... are based on an employee survey administered by WorkplaceDynamics, LLC, a ...
Breaking Medicine Technology: