Vascular risk factors and cognitive functioning in normal elderly
by Buttaro, Melissa Anne, Ph.D., UNIVERSITY OF CONNECTICUT, 2007, 62 pages; 3279269

Abstract:

Recent research has suggested that vascular disease risk factors (VDRF) may contribute to cognitive impairment. The aim of the present study was to determine the relative contribution of VDRF to cognitive functioning and activities of daily living in a community-dwelling cohort of individuals aged 75-90. Participants were questioned about cigarette smoking and alcohol consumption, and a neurologist gathered information about prior diagnosis of vascular risk factors (i.e., hypertension, hypercholesterolemia, diabetes mellitus, arrhythmia, coronary artery disease, congestive heart failure, transient ischemic attack, and stroke). Volunteers also completed a one-hour neuropsychological test battery and questionnaires about levels of pain, symptoms of depression, and ability to perform activities of daily living. Sequential regression analyses revealed that number of vascular risk factors did not reliably predict performance on measures of verbal memory, attention/executive functioning, or visuospatial skills. However, older age was associated with lower performance on tests of verbal memory and attention/executive functioning, and female gender predicted higher verbal memory but lower visuospatial test scores. Although demographic variables accounted for the greatest percentage of variance in the regression models, pain was a significant predictor of visuospatial test scores, and symptoms of depression predicted performance on measures of attention/executive functioning. Only depressive symptoms predicted performance on the Instrumental Activities of Daily Living checklist. Thus, in this sample of relatively healthy elderly individuals, vascular risk factor burden did not reliably contribute to cognitive functioning or ability to perform activities of daily living. These findings are interpreted in terms of the theory of cognitive reserve (Stern, 2002).

 
Advisor
SchoolUNIVERSITY OF CONNECTICUT
SourceDAI/B 68-08, p. , Dec 2007
Source TypeDissertation
SubjectsGerontology; Cognitive psychology
Publication Number3279269
Adobe PDF Access the complete dissertation:
 

» Find an electronic copy at your library.
  Use the link below to access a full citation record of this graduate work:
  http://gateway.proquest.com/openurl%3furl_ver=Z39.88-2004%26res_dat=xri:pqdiss%26rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation%26rft_dat=xri:pqdiss:3279269
  If your library subscribes to the ProQuest Dissertations & Theses (PQDT) database, you may be entitled to a free electronic version of this graduate work. If not, you will have the option to purchase one, and access a 24 page preview for free (if available).

About ProQuest Dissertations & Theses
With over 2.3 million records, the ProQuest Dissertations & Theses (PQDT) database is the most comprehensive collection of dissertations and theses in the world. It is the database of record for graduate research.

The database includes citations of graduate works ranging from the first U.S. dissertation, accepted in 1861, to those accepted as recently as last semester. Of the 2.3 million graduate works included in the database, ProQuest offers more than 1.9 million in full text formats. Of those, over 860,000 are available in PDF format. More than 60,000 dissertations and theses are added to the database each year.

If you have questions, please feel free to visit the ProQuest Web site - http://www.proquest.com - or call ProQuest Hotline Customer Support at 1-800-521-3042.