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.

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 October 1, 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 October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pregnancy Spacing Could Have Big Impact On Autism Risks

Pregnancy Spacing Could Have Big Impact On Autism Risks

Newsy (Oct. 1, 2014) — A new study says children born less than one year and more than five years after a sibling can have an increased risk for autism. Video provided by Newsy
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) — A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com
Insertable Cardiac Monitor

Insertable Cardiac Monitor

Ivanhoe (Oct. 1, 2014) — A heart monitor the size of a paperclip that can save your life. The “Reveal Linq” allows a doctor to monitor patients with A-Fib on a continuous basis for up to 3 years! Video provided by Ivanhoe
Powered by NewsLook.com
Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) — Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
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