Featured Research

from universities, journals, and other organizations

Being Born Bottom First Is Inherited, Study Suggests

Date:
March 30, 2008
Source:
BMJ-British Medical Journal
Summary:
A baby is twice as likely to be born bottom first if either or both the parents were themselves breech deliveries, according to a new study. The results suggest genes are a contributing factor.

A baby is twice as likely to be born bottom first if either or both the parents were themselves breech deliveries, according to a study published ahead of print in the British Medical Journal. The results suggest genes are a contributing factor.

Related Articles


The vast majority of babies are delivered head first. Fewer than one in twenty are delivered the other way round -- what is known as a breech delivery. Such deliveries carry significantly greater risks for the baby: they are more likely to die or suffer from health problems.

Factors such as premature delivery and low birth weight are also known risk factors associated with a breech delivery but these only account for up to one in seven of all such breech births. Until now knowledge of whether genes could also be a factor has been lacking.

The researchers from the University of Bergen in Norway looked at data covering all the births in Norway between 1967 and 2004. They studied the information available on men and women and their first born children - a total of 387,555 parent and child units.

They found that men and women who had been delivered full-term in breech had more than twice the risk of breech delivery in their own first pregnancies. Furthermore, babies delivered naturally, not by caesarean, were at the biggest risk of a breech delivery.

The risk was equally strong for male and female parents. This result was emphasized when researchers studied the 35,056 men who had children with two different women. The authors suggest that genes predisposing to a breech delivery are transferred to the foetus which then increases the risk of the mother having a breech delivery.

Breech delivered parents, born prematurely, had no increased risk of breech delivered offspring - the result of the prematurity rather than genes predisposing towards a breech delivery in these cases.

Despite the suggestion of a genetic trait for breech presentation some of the results suggest an environmental factor or interaction, caution the researchers in accompany editorial. Further research is needed before advising mothers of a high risk of breech delivery if their parents had a breech delivery.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Cite This Page:

BMJ-British Medical Journal. "Being Born Bottom First Is Inherited, Study Suggests." ScienceDaily. ScienceDaily, 30 March 2008. <www.sciencedaily.com/releases/2008/03/080328070122.htm>.
BMJ-British Medical Journal. (2008, March 30). Being Born Bottom First Is Inherited, Study Suggests. ScienceDaily. Retrieved April 25, 2015 from www.sciencedaily.com/releases/2008/03/080328070122.htm
BMJ-British Medical Journal. "Being Born Bottom First Is Inherited, Study Suggests." ScienceDaily. www.sciencedaily.com/releases/2008/03/080328070122.htm (accessed April 25, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, April 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

85 Killed in Niger by Meningitis Since Start of Year

85 Killed in Niger by Meningitis Since Start of Year

AFP (Apr. 24, 2015) A meningitis outbreak in Niger has killed 85 people since the start of the year prompting authorities to close schools in the capital Niamey until Monday. Video provided by AFP
Powered by NewsLook.com
C-Section Births a Trend in Brazil

C-Section Births a Trend in Brazil

AFP (Apr. 24, 2015) More than half of Brazil&apos;s babies are born via cesarean section, as mothers and doctors opt for a faster and less painful experience despite the health risks. Duration: 02:02 Video provided by AFP
Powered by NewsLook.com
Anti-Malaria Jab Hope

Anti-Malaria Jab Hope

Reuters - News Video Online (Apr. 24, 2015) The world&apos;s first anti-malaria vaccine could get the go-ahead for use in Africa from October if approved by international regulators. Paul Chapman reports. Video provided by Reuters
Powered by NewsLook.com
3D Food Printing: The Meal of the Future?

3D Food Printing: The Meal of the Future?

AP (Apr. 23, 2015) Developers of 3D food printing hope the culinary technology will revolutionize the way we cook and eat. (April 23) 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