Featured Research

from universities, journals, and other organizations

Marijuana use prior to pregnancy doubles risk of premature birth

Date:
July 17, 2012
Source:
University of Adelaide
Summary:
Women who use marijuana can more than double the risk of giving birth to a baby prematurely.

Premature baby. Women who use marijuana can more than double the risk of giving birth to a baby prematurely.
Credit: gdbrekke / Fotolia

A large international study led by University of Adelaide researchers has found that women who use marijuana can more than double the risk of giving birth to a baby prematurely.

Preterm or premature birth -- at least three weeks before a baby's due date -- can result in serious and life-threatening health problems for the baby, and an increased risk of health problems in later life, such as heart disease and diabetes.

A study of more than 3000 pregnant women in Adelaide, Australia and Auckland, New Zealand has detailed the most common risk factors for preterm birth. The results have been published online July 17 in the journal PLoS ONE.

The research team, led by Professor Gus Dekker from the University of Adelaide's Robinson Institute and the Lyell McEwin Hospital, found that the greatest risks for spontaneous preterm birth included:

* Strong family history of low birth weight babies (almost six times the risk);

* Use of marijuana prior to pregnancy (more than double the risk);

* Having a mother with a history of pre-eclampsia (more than double the risk);

* Having a history of vaginal bleeds (more than double the risk);

* Having a mother with diabetes type 1 or 2 (more than double the risk).

The team also found that the greatest risk factors involved in the preterm rupture of membranes leading to birth included:

* Mild hypertension not requiring treatment (almost 10 times the risk);

* Family history of recurrent gestational diabetes (eight times the risk);

* Receiving some forms of hormonal fertility treatment (almost four times the risk);

* Having a body mass index of less than 20 (more than double the risk).

"Our study has found that the risk factors for both forms of preterm birth vary greatly, with a wide variety of health conditions and histories impacting on preterm birth," says Professor Dekker, who is the lead author of the study.

"Better understanding the risk factors involved in preterm birth moves us another step forward in potentially developing a test -- genetic or otherwise -- that will help us to predict with greater accuracy the risk of preterm birth. Our ultimate aim is to safeguard the lives of babies and their health in the longer term," he says.

This study has been funded by the Premier's Science and Research Fund (South Australian Government) and the New Enterprise Research Fund, Auckland NZ.


Story Source:

The above story is based on materials provided by University of Adelaide. Note: Materials may be edited for content and length.


Journal Reference:

  1. Dekker GA, Lee SY, North RA, McCowan LM, Simpson NAB, et al. Risk Factors for Preterm Birth in an International Prospective Cohort of Nulliparous Women. 2012, PLoS ONE DOI: 10.1371/journal.pone.0039154

Cite This Page:

University of Adelaide. "Marijuana use prior to pregnancy doubles risk of premature birth." ScienceDaily. ScienceDaily, 17 July 2012. <www.sciencedaily.com/releases/2012/07/120717182953.htm>.
University of Adelaide. (2012, July 17). Marijuana use prior to pregnancy doubles risk of premature birth. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2012/07/120717182953.htm
University of Adelaide. "Marijuana use prior to pregnancy doubles risk of premature birth." ScienceDaily. www.sciencedaily.com/releases/2012/07/120717182953.htm (accessed July 23, 2014).

Share This




More Health & Medicine News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. Video provided by Newsy
Powered by NewsLook.com
Stone Fruit Listeria Scare Causes Sweeping Recall

Stone Fruit Listeria Scare Causes Sweeping Recall

Newsy (July 22, 2014) The Wawona Packing Company has issued a voluntary recall on the stone fruit it distributes due to a possible Listeria outbreak. Video provided by Newsy
Powered by NewsLook.com
Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Newsy (July 22, 2014) The 83 new genetic markers could open dozens of new avenues for schizophrenia treatment research. Video provided by Newsy
Powered by NewsLook.com
CDC Head Concerned About a Post-Antibiotic Era

CDC Head Concerned About a Post-Antibiotic Era

AP (July 22, 2014) Sounding alarms about the growing threat of antibiotic resistance, CDC Director Tom Frieden warned Tuesday if the global community does not confront the problem soon, the world will be living in a devastating post-antibiotic era. (July 22) 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:
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