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Updated 25 July 2013

50 million couples infertile

There's been little change in global rates of infertility over the past 20 years, according to a new study.

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There's been little change in global rates of infertility over the past 20 years, according to a new study.

In 2010, nearly 50 million couples worldwide were unable to conceive a child after five years of trying, according to the study published online in the journal PLoS Medicine.

For the study, researchers examined 277 national surveys in order to estimate the infertility levels in 190 countries between 1990 and 2010.

The analysis revealed that in 2010, 1.9% of women aged 20 who wanted to have children were unable to have their first live birth (primary infertility), and 10.5% of women who had previously given birth were unable to have another baby (secondary infertility).

How the study was done

That works out to a total of 48.5 million couples worldwide, study leader Gretchen Stevens, of the World Health Organisation, and colleagues explained in a journal news release.

Infertility levels in 1990 and 2010 were similar, with only a 0.1% decrease in primary infertility and a 0.4% increase in secondary infertility over the time period, the investigators found.

Primary infertility rates varied by region, ranging from 1.5% in Latin America and the Caribbean to 2.6% in North Africa and the Middle East in 2010. In general, country and global patterns of secondary infertility were similar to those of primary infertility.

"In the absence of widespread data collection on time to pregnancy, the methods used and results presented [in this study] provide valuable insights into global, regional and country patterns and trends in infertility," the study authors concluded in the news release.

Read more:

5 million fertility babies born since the first

Walnuts boost sperm quality

Pregnancy nutrition tips 

More information

The US Centers for Disease Control and Prevention has more about infertility.

 

(Copyright © 2012 HealthDay. All rights reserved.) 

 
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