Featured Research

from universities, journals, and other organizations

Possible association between maternal exposure to magnetic fields and development of asthma in children

Date:
August 1, 2011
Source:
JAMA and Archives Journals
Summary:
Children whose mothers had high exposure to magnetic fields (MF) during pregnancy appear to have an increased risk of developing asthma, according to a new study.

Children whose mothers had high exposure to magnetic fields (MF) during pregnancy appear to have an increased risk of developing asthma, according to a report published Online First by Archives of Pediatrics and Adolescent Medicine, one of the JAMA/Archives journals.

According to the article, asthma is a common condition in children, affecting 13 percent of the U.S. population younger than 18 years, and having health and economic consequences. The authors note that asthma prevalence increased roughly 74 percent from 1980 to 1996 and that research on the potential risk of environmental physical exposures has been limited. Citing an increase in artificial electromagnetic fields (EMFs) from power lines, appliances, wireless networks and wireless devices, and other research possibly connecting EMFs to adverse health outcomes, they write, "This parallel increase in both EMF exposure and asthma prevalence in the past several decades warrants examination."

De-Kun Li, M.D., Ph.D., and colleagues from Kaiser Permanente, Oakland, Calif., conducted a prospective cohort study to examine the association between maternal exposure to high levels of MFs during pregnancy and risk of asthma in offspring. From 1996 to 1998, the authors recruited pregnant women who were members of Kaiser Permanente Northern California in the San Francisco area. Participants wore a meter that measured their MF levels for 24 hours, and then rated whether their activities during that period were typical. Offspring were followed until they received a diagnosis of asthma, they left the health system's care or the study period ended in August 2010.

During the 13 years of follow-up, 130 children (20.8 percent of the study participants) developed asthma, with most cases diagnosed by 5 years of age. Researchers observed a statistically significant linear dose-response relationship between increasing maternal median daily MF exposure level during pregnancy and an increased risk of asthma in children. Every one-milligauss increase in a pregnant woman's median MF exposure was associated with a 15 percent increase in the risk of the child developing asthma. The association was especially strong for firstborn children and those whose mothers had a history of asthma, two known risk factors for the condition.

"In conclusion, the findings of the present study open up a new area in understanding the risk factors for asthma and the health effects of ubiquitous MF exposure, especially during pregnancy," the authors state. "As with any epidemiological study, these findings need to be replicated. If confirmed, they have the potential to inform new intervention strategies to reduce asthma, the most prevalent chronic disease among children."


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. De-Kun Li, Hong Chen, Roxana Odouli. Maternal Exposure to Magnetic Fields During Pregnancy in Relation to the Risk of Asthma in Offspring. Archives of Pediatrics and Adolescent Medicine, 2011; DOI: 10.1001/archpediatrics.2011.135

Cite This Page:

JAMA and Archives Journals. "Possible association between maternal exposure to magnetic fields and development of asthma in children." ScienceDaily. ScienceDaily, 1 August 2011. <www.sciencedaily.com/releases/2011/08/110801173137.htm>.
JAMA and Archives Journals. (2011, August 1). Possible association between maternal exposure to magnetic fields and development of asthma in children. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2011/08/110801173137.htm
JAMA and Archives Journals. "Possible association between maternal exposure to magnetic fields and development of asthma in children." ScienceDaily. www.sciencedaily.com/releases/2011/08/110801173137.htm (accessed April 16, 2014).

Share This



More Health & Medicine News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
Cognitive Function: Is It All Downhill From Age 24?

Cognitive Function: Is It All Downhill From Age 24?

Newsy (Apr. 15, 2014) A new study out of Canada says cognitive motor performance begins deteriorating around age 24. Video provided by Newsy
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com
Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Newsy (Apr. 14, 2014) Richard van As lost all fingers on his right hand in a woodworking accident. Now, he's used the incident to create a prosthetic to help hundreds. 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:

More Coverage


Exposure to Magnetic Fields in Pregnancy Increases Asthma Risk, Study Suggests

Aug. 1, 2011 Women with high exposure to magnetic fields during pregnancy may have a higher risk of asthma in their children, according to a new ... read more
from the past week

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