Featured Research

from universities, journals, and other organizations

Recent immigrants may have lower risk of early stroke

Date:
February 4, 2010
Source:
American Academy of Neurology
Summary:
New immigrants to North America may be less likely to have a stroke at a young age than long-time residents, according to a new study.

New immigrants to North America may be less likely to have a stroke at a young age than long-time residents, according to a study published in the February 3, 2010, online issue of Neurology®, the medical journal of the American Academy of Neurology.

Related Articles


For the study, researchers identified all new immigrants to Ontario, Canada, over a 12-year period and matched them to people of the same age and gender who had lived in Ontario for at least five years. A total of 966,000 new immigrants were matched to more than 3.2 million long-term residents. The participants were age 16 to 65 at the start of the study, with an average age of 34.

The researchers then followed all of the participants for an average of about six years. During that time, there were 933 strokes among the new immigrants and 5,283 strokes among the long-term residents. This is a rate of 1.7 strokes per person per year in new immigrants and 2.6 strokes per person per year in long-term residents, or a 30 percent lower rate for new immigrants.

The results were the same after adjusting for income level, smoking, and history of other diseases such as high blood pressure and diabetes.

"Recent immigrants to Canada and the U.S. face many stressors as they adapt to changes in their diet, jobs, housing and relationships which may adversely affect stroke risk," said study author Gustavo Saposnik, MD, MSc, with St. Michael's Hospital, the University of Toronto and a member of the American Academy of Neurology. "Other studies have shown that compared to people born in those countries, recent immigrants to Canada and the U.S. may have lower rates of diseases such as high blood pressure. On the other hand, the lower prevalence of hypertension and other risk factors such as diabetes and smoking among new immigrants may decrease their vascular risk. We evaluated which of these two competing factors (psychosocial stress associated to the new environment vs. health immigrant effect) prevail."

There are several theories why immigrants may be healthier than long-term residents: Those willing to undergo the stress of immigration are usually in good health prior to immigrating; the medical examination required of all potential immigrants screens out unhealthy candidates; and immigrants who experience poor health may return to their home country for support.

"More research to determine whether the risk of stroke in immigrants 'normalizes' to the level seen in longer-term residents may help shed light on undiscovered risk factors for stroke," said Bradley S. Jacobs, MD, MS, of Wright State University Boonshoft School of Medicine in Dayton, Ohio, who wrote an editorial accompanying the study.

The study was supported by a grant from the Heart and Stroke Foundation of Ontario.


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Journal Reference:

  1. G. Saposnik, D. A. Redelmeier, H. Lu, E. Lonn, E. Fuller-Thomson, and J. G. Ray. Risk of premature stroke in recent immigrants (PRESARIO). Population-based matched cohort study. Neurology, 2010; DOI: 10.1212/WNL.0b013e3181cf6e9e

Cite This Page:

American Academy of Neurology. "Recent immigrants may have lower risk of early stroke." ScienceDaily. ScienceDaily, 4 February 2010. <www.sciencedaily.com/releases/2010/02/100203161424.htm>.
American Academy of Neurology. (2010, February 4). Recent immigrants may have lower risk of early stroke. ScienceDaily. Retrieved November 29, 2014 from www.sciencedaily.com/releases/2010/02/100203161424.htm
American Academy of Neurology. "Recent immigrants may have lower risk of early stroke." ScienceDaily. www.sciencedaily.com/releases/2010/02/100203161424.htm (accessed November 29, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, November 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rural India's Low-Cost Sanitary Pad Revolution

Rural India's Low-Cost Sanitary Pad Revolution

AFP (Nov. 28, 2014) — One man hopes his invention -– a machine that produces cheap sanitary pads –- will help empower Indian women. Duration: 01:51 Video provided by AFP
Powered by NewsLook.com
Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) — In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
WHO Says Male Ebola Survivors Should Abstain From Sex

WHO Says Male Ebola Survivors Should Abstain From Sex

Newsy (Nov. 28, 2014) — WHO cites four studies that say Ebola can still be detected in semen up to 82 days after the onset of symptoms. Video provided by Newsy
Powered by NewsLook.com
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

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