Featured Research

from universities, journals, and other organizations

Success of fertility treatment may approach natural birth rate

Date:
June 28, 2012
Source:
Michigan State University
Summary:
A groundbreaking study of nearly 250,000 US women reveals live birth rates approaching natural fertility can be achieved using assisted reproductive technology, where eggs are removed from a woman's ovaries, combined with sperm and then returned to the woman's body.

A groundbreaking study of nearly 250,000 U.S. women reveals live birth rates approaching natural fertility can be achieved using assisted reproductive technology, where eggs are removed from a woman's ovaries, combined with sperm and then returned to the woman's body.

The research, led by Michigan State University's Barbara Luke and published in the New England Journal of Medicine, highlights what factors help or hinder getting pregnant using assisted reproductive technology, or ART. The results indicate that when there are favorable patient and embryo characteristics, live birth rates with ART can approach those of natural fertility.

"This is good news for women who are trying to have a child," said Luke, a researcher in the College of Human Medicine's Department of Obstetrics, Gynecology and Reproductive Biology.

The number of ART treatments has more than doubled in the past 10 years, and live birth rates traditionally have been reported per cycle, or per one course of treatment. While that is easily calculated and is the method used by national registries across the world, Luke's team sought to estimate cumulative success rates with continued treatment.

"Women and families want to know the overall chances they will get pregnant, not necessarily whether they will get pregnant during a specific cycle," Luke said.

Data were obtained from the Society for Assisted Reproductive Technology's Clinic Outcome Reporting System for women undergoing treatment between 2004 and 2009. The system contains data on more than 90 percent of all clinics performing ART treatments in the United States.

The study of 246,740 women revealed 57 percent of women achieved a live birth via ART treatment, and 30 percent of all ART cycles resulted in a live birth. Success rates declined with increasing age for women using their own eggs, especially for those ages 38 years and older, but not for women using donor eggs.

The estimated natural fertility rate of the general population is about 20 percent per month, and estimated rates of conceiving spontaneously are 45 percent, 65 percent and 85 percent after three, six and 12 months, respectively.

The study looked at factors such as patient age, diagnosis, response to treatment, cryopreservation and the stage at which embryos were transferred. Two major factors that influence ART success are favorable patient characteristics (specifically age) and good embryo quality. Among older women, live birth rates can be substantially improved with continued treatment and a change to donor eggs.

"Although the decision to use donor eggs is a very personal one, these analyses provide information regarding the likelihood of a live birth using this option," said Luke.

These results also could guide regulations governing health insurance coverage for infertility treatment. The number of treatment cycles covered by insurance is typically limited to two or three. The findings demonstrate that when using a woman's own eggs, the success rates continue to rise beyond two to three cycles; additionally, the study may help providers and women decide when it is appropriate to change to donor eggs.

The study team was made up of researchers from MSU, University of Michigan, Redshift Technologies in New York, Baylor College of Medicine in Houston, Cornell Medical Center in New York, Columbia University Medical Center in New York, Spectrum Health Medical Group in Grand Rapids and Dartmouth-Hitchcock Medical Center at Dartmouth College in New Hampshire.


Story Source:

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


Journal Reference:

  1. Barbara Luke, Morton B. Brown, Ethan Wantman, Avi Lederman, William Gibbons, Glenn L. Schattman, Rogerio A. Lobo, Richard E. Leach, Judy E. Stern. Cumulative Birth Rates with Linked Assisted Reproductive Technology Cycles. New England Journal of Medicine, 2012; 366 (26): 2483 DOI: 10.1056/NEJMoa1110238

Cite This Page:

Michigan State University. "Success of fertility treatment may approach natural birth rate." ScienceDaily. ScienceDaily, 28 June 2012. <www.sciencedaily.com/releases/2012/06/120628131404.htm>.
Michigan State University. (2012, June 28). Success of fertility treatment may approach natural birth rate. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2012/06/120628131404.htm
Michigan State University. "Success of fertility treatment may approach natural birth rate." ScienceDaily. www.sciencedaily.com/releases/2012/06/120628131404.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com
West Africa Gripped by Deadly Ebola Outbreak

West Africa Gripped by Deadly Ebola Outbreak

AFP (July 28, 2014) The worst-ever outbreak of the deadly Ebola epidemic grips west Africa, killing hundreds. Duration: 00:48 Video provided by AFP
Powered by NewsLook.com
Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. 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:
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