Featured Research

from universities, journals, and other organizations

Babies born in Canada to immigrant mothers have lower risk of cerebral palsy: Study

Date:
July 14, 2014
Source:
St. Michael's Hospital
Summary:
Babies born to mothers who immigrated to Ontario from other countries have significantly lower rates of cerebral palsy than those of Canadian-born mothers, especially those from the Caribbean and East Asia, new research has found. CP is the most common motor disability in childhood and appears by the age of four. The underlying injury to the brain with CP is thought to occur before birth, rather than during delivery. Most damage is to the motor neurons of the brain affecting coordination and muscle strength.

Babies born to mothers who immigrated to Ontario from other countries have significantly lower rates of cerebral palsy than those of Canadian-born mothers, especially those from the Caribbean and East Asia, new research has found.

Related Articles


"Predicting who is at highest risk of having a child with CP remains an international priority," said lead author Dr. Joel Ray, who notes that CP rates have not declined much over the last decade.

CP is the most common motor disability in childhood and appears by the age of four. The underlying injury to the brain with CP is thought to occur before birth, rather than during delivery. Most damage is to the motor neurons of the brain affecting coordination and muscle strength.

Dr. Ray, a physician and researcher at St. Michael's Hospital, looked at data from the Institute for Clinical Evaluative Sciences on all single births in Ontario from 2002 to 2008. Each child was assessed up to age four.

In a paper published in the online journal PLoS One, he reported there were 1,346 cases of CP among 744,058 live single births. For immigrants, there were 1.45 cases of CP for every 1,000 births, a 23 per cent lower risk than for non-immigrants who had 1.92 CP diagnoses per 1,000 births.

However, immigrants living in high-income areas were not at lower risk of CP than their non-immigrant counterparts. Dr. Ray, also a scientist at ICES, said this may be because wealthier immigrants, who have lived in Canada longer, lose the "healthy immigrant effect," where immigrants are generally healthier than people born in Canada.

Dr. Ray noted that we still have a poor understanding of how CP arises, so the more scientists can understand the underlying risk factors that predispose someone to CP the closer they may come to developing interventions to prevent CP. Knowing why immigrants are at lower risk of having a child with CP offers clues to discovering ways to prevent CP among all Canadians.

About 80 per cent of CP cases are due to prenatal injury of the brain and only 10 per cent to adverse events after birth. The most common risk factors are low and high birth weights as well as premature birth -- although half of all children who develop CP are born at term and most cases occur in children with an apparently uncomplicated pregnancy.

Dr. Ray said it's also thought that CP and stillbirths share many common risk factors, including placental vascular disease in the mother -- such things as preeclampsia, gestational hypertension, placental abruption and placental infarction. Yet, even upon adjusting for these conditions, the risk of CP was still lower among immigrant mothers.


Story Source:

The above story is based on materials provided by St. Michael's Hospital. The original article was written by Leslie Shepherd. Note: Materials may be edited for content and length.


Cite This Page:

St. Michael's Hospital. "Babies born in Canada to immigrant mothers have lower risk of cerebral palsy: Study." ScienceDaily. ScienceDaily, 14 July 2014. <www.sciencedaily.com/releases/2014/07/140714152437.htm>.
St. Michael's Hospital. (2014, July 14). Babies born in Canada to immigrant mothers have lower risk of cerebral palsy: Study. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2014/07/140714152437.htm
St. Michael's Hospital. "Babies born in Canada to immigrant mothers have lower risk of cerebral palsy: Study." ScienceDaily. www.sciencedaily.com/releases/2014/07/140714152437.htm (accessed October 30, 2014).

Share This



More Health & Medicine News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Reuters - Innovations Video Online (Oct. 29, 2014) A Swedish amputee who became the first person to ever receive a brain controlled prosthetic arm is able to manipulate and handle delicate objects with an unprecedented level of dexterity. The device is connected directly to his bone, nerves and muscles, giving him the ability to control it with his thoughts. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Google To Use Nanoparticles, Wearables To Detect Disease

Google To Use Nanoparticles, Wearables To Detect Disease

Newsy (Oct. 29, 2014) Google X wants to improve modern medicine with nanoparticles and a wearable device. It's all an attempt to tackle disease detection and prevention. Video provided by Newsy
Powered by NewsLook.com
Can Drinking Milk Lead To Early Death?

Can Drinking Milk Lead To Early Death?

Newsy (Oct. 29, 2014) Researchers in Sweden released a study showing heavy milk drinkers face an increased mortality risk from a variety of causes. Video provided by Newsy
Powered by NewsLook.com
Obama: The US Will Not 'run and Hide' From Ebola

Obama: The US Will Not 'run and Hide' From Ebola

AP (Oct. 29, 2014) Surrounded by health care workers in the White House East Room, President Barack Obama said the U.S. will likely see additional Ebola cases in the weeks ahead. But he said the nation can't seal itself off in the fight against the disease. (Oct. 29) Video provided by AP
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