Featured Research

from universities, journals, and other organizations

Older Adults Often Inaccurately Report Their Own Stroke History

Date:
May 11, 2009
Source:
JAMA and Archives Journals
Summary:
The responses of older adults who are asked whether they had a stroke frequently do not agree with diagnoses obtained by magnetic resonance imaging of the brain, according to a new report.

The responses of older adults who are asked whether they had a stroke frequently do not agree with diagnoses obtained by magnetic resonance imaging (MRI) of the brain, according to a new report.

Related Articles


Self-administered questionnaires are frequently used to obtain information about an individual's history of stroke, according to background information in the article. "In general, self-reports on medical conditions that are well defined and relatively easy to diagnose often have a high positive predictive value, in contrast to conditions characterized by complex symptoms," the authors write. "Stroke is associated with motor impairment but can also be accompanied by impairments in memory, sensation and speech or language, diminishing the ability of an individual to accurately report a history of stroke."

Christiane Reitz, M.D., Ph.D., of Columbia University Medical Center, New York, and colleagues acquired MRIs for 717 Medicare recipients 65 years and older (average age 80.1) living in northern Manhattan. Participants underwent an in-person interview about general health and functioning, medical history, a physical and neurological examination and psychological testing. They or their caregivers also completed an eight-question survey about stroke history, including whether they had ever had symptoms of or been told by a physician they had a stroke.

A total of 85 individuals (11.9 percent) reported a history of stroke. On the MRI, evidence of a stroke was observed in 225 participants (31.4 percent). The sensitivity of self-reported stroke—meaning number of individuals who reported having had a stroke divided by the total number of individuals with stroke detected on MRI—was 32.4 percent. The specificity, or the number of individuals who reported having no history of stroke divided by the total number of individuals who had no evidence of stroke on MRI, was 78.9 percent.

"Lower-functioning memory, cognitive or language ability or presence of hypertension [high blood pressure] or myocardial infarction [heart attack] were associated with an increased frequency of false-negative reports," the authors write.

In addition, younger individuals were more likely to accurately report their stroke history than older adults, and sensitivity was higher among African American than white or Hispanic individuals. Older adults may have more difficulty recalling prior events, contributing to lower sensitivity, the authors note. Rates of cerebrovascular disease are higher among African Americans, so individuals in this population may have an increased awareness of stroke signs and symptoms due to previous discussions with clinicians or contact with individuals who have had strokes.

"Our results indicate that sensitivity and specificity of stroke self-report are low when using MRI scans as validation," the authors conclude. "In stroke research, sensitive neuroimaging techniques rather than stroke self-report should be used to determine stroke history."

This study was supported by grants from the National Institutes of Health.


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Christiane Reitz, MD, PhD; Nicole Schupf, PhD; Josι A. Luchsinger, MD, MPH; Adam M. Brickman, PhD; Jennifer J. Manly, PhD; Howard Andrews, PhD; Ming X. Tang, PhD; Charles DeCarli, PhD; Truman R. Brown, PhD; Richard Mayeux, MD, MSc. Validity of Self-reported Stroke in Elderly African Americans, Caribbean Hispanics, and Whites. Arch Neurol., 2009;66(7) DOI: 10.1001/archneurol.2009.83

Cite This Page:

JAMA and Archives Journals. "Older Adults Often Inaccurately Report Their Own Stroke History." ScienceDaily. ScienceDaily, 11 May 2009. <www.sciencedaily.com/releases/2009/05/090511164551.htm>.
JAMA and Archives Journals. (2009, May 11). Older Adults Often Inaccurately Report Their Own Stroke History. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2009/05/090511164551.htm
JAMA and Archives Journals. "Older Adults Often Inaccurately Report Their Own Stroke History." ScienceDaily. www.sciencedaily.com/releases/2009/05/090511164551.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) — A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. 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:

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