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 December 22, 2014 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 December 22, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Christmas Kissing Good for Health

Christmas Kissing Good for Health

Reuters - Innovations Video Online (Dec. 22, 2014) Scientists in Amsterdam say couples transfer tens of millions of microbes when they kiss, encouraging healthy exposure to bacteria. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Brain-Dwelling Tapeworm Reveals Genetic Secrets

Brain-Dwelling Tapeworm Reveals Genetic Secrets

Reuters - Innovations Video Online (Dec. 22, 2014) Cambridge scientists have unravelled the genetic code of a rare tapeworm that lived inside a patient's brain for at least four year. Researchers hope it will present new opportunities to diagnose and treat this invasive parasite. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Touch-Free Smart Phone Empowers Mobility-Impaired

Touch-Free Smart Phone Empowers Mobility-Impaired

Reuters - Innovations Video Online (Dec. 21, 2014) A touch-free phone developed in Israel enables the mobility-impaired to operate smart phones with just a movement of the head. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Earthworms Provide Cancer-Fighting Bacteria

Earthworms Provide Cancer-Fighting Bacteria

Reuters - Innovations Video Online (Dec. 21, 2014) Polish scientists isolate bacteria from earthworm intestines which they say may be used in antibiotics and cancer treatments. Suzannah Butcher reports. Video provided by Reuters
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