HOME >> BIOLOGY >> NEWS
Assisted reproduction can't compensate for waiting too long to start a family

Women who wait until 35 to start trying for a family were warned today (Thursday 17 June) that if they did not conceive spontaneously they could not depend on assisted reproduction to make up fully for the loss of natural fertility after that age.

Professor Henri Leridon, a demographer from the French Institute of Health and Medical Research (INSERM) and the National Institute for Demographic Studies (INED), reports in Europe's leading reproductive journal Human Reproduction[1] that, while the chances of rapid conception were still significant for women over 35, if they failed to become pregnant spontaneously, assisted reproduction could not fully compensate for the lost years.

He reached his conclusion after using a computer simulation model to study the odds on achieving a live birth naturally if a woman started trying to conceive at ages 30, 35 or 40 compared with the success rate if they turned to assisted reproduction technologies (ART) after four, three or two years respectively and assuming two attempts at IVF.

The complicated computer simulation[2] combined the monthly probabilities of conceiving, the risk of miscarriage and the probability of becoming permanently sterile through age.

"What it showed was that, under natural conditions, three-quarters of women starting to try to conceive at the age of 30 will start a successful pregnancy within one year. Two-thirds of those starting at 35 will be successful within one year and 44% of those starting at age 40 will succeed within one year. Four years after trying to start to conceive, 91% of 30 year-olds, 84% of 35 year-olds and 64% of 40 year-olds will have been successful.

"But, if women of 30 at first attempt at pregnancy turn to ART after four years of trying unsuccessfully, women of 35 turn to ART after three years of trying and women of 40turn to ART after two years of trying, then we find that ART will make up for only half of the births lost by postponing a first
'"/>

Contact: Margaret Willson
m.willson@mwcommunications.org.uk
44-0-153-677-2181
European Society for Human Reproduction and Embryology
16-Jun-2004


Page: 1 2 3

Related biology news :

1. Assisted reproduction provides bright future for HIV positive men
2. Assisted reproduction may be linked to birth defect syndrome
3. Study Documents Attitudes About Assisted Suicide Among Patients With Lou Gehrigs Disease
4. Engineering Our Arteries: Replacements And Assisted Healing
5. Nevada researcher re-ignites mammal reproduction debate
6. Research into cetacean reproduction leads to birth of killer whales by artificial insemination
7. SMCM professor discovers cattle hormones that leak into streams and alter fish reproduction
8. Climate linked to reproduction of right whales
9. Spanish fertility experts bring hope of avoiding serious complication of assisted reproduction
10. Americans deeply divided about use of genetic technologies in reproduction
11. Mating molds provide new insights into speciation and human reproduction

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/31/2020)... ... July 30, 2020 , ... Justin Zamirowski to lead upcoming ... term focus on Type 2 diabetes and associated comorbidities. , Justin brings over ... and classes. As Chief Commercial Officer, Justin will lead Better Therapeutics’ ...
(Date:7/10/2020)... Va. (PRWEB) , ... July 08, 2020 , ... ... Latest on Cell and Gene Therapy Regulation, An FDAnews Webinar, Wednesday, July 22, ... need a comparability study, but what is the most effective way to complete ...
(Date:7/2/2020)... ... July 02, 2020 , ... ... B.V. (MBS) has announced a publication detailing the use of its revolutionary ... polymerase chain reaction (RT-PCR) in 16 minutes. The article, titled "Ultra-fast one-step ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... ... July 16, 2020 , ... After research model surgery and catheter implantation, the ... is only the beginning of a successful study, while protecting and accessing the catheter ... Global Head of Surgery from Envigo in a live webinar ...
(Date:7/10/2020)... , ... July 08, 2020 , ... ... and products, announces a significant expansion of laboratory operations through its COVID-19 ... agencies implementing testing programs. , Bode-CARES provides a turnkey solution ...
(Date:7/7/2020)... SAN DIEGO (PRWEB) , ... July 06, 2020 , ... ... a new program featuring up to 200 million stem cells. Depending on the patient's ... of seniors in the US will die having some form of Alzheimers dementia, and ...
(Date:7/1/2020)... WESTMINSTER, Colo. (PRWEB) , ... ... ... providers of expert tissue data insights, today announced that the launch of ... PD-L1 results along with data about the tumor microenvironment (TME). , “Flagship’s ...
Breaking Biology Technology:
Cached News: