Egg freezing has been touted as a approach for ladies to place off having kids, giving them extra time to work on their careers or seek for the fitting associate. However a brand new examine finds that few girls who freeze their eggs really find yourself utilizing them.
Within the examine, researchers in Australia surveyed practically 100 girls who had elected to freeze their eggs, between 1999 and 2014, as a solution to delay childbearing. (Not one of the girls within the examine had a medical purpose for freezing their eggs.)
On common, the ladies have been 37 years outdated on the time they froze their eggs, and 40 years outdated on the time they accomplished the survey. The vast majority of girls (86 %) have been single once they froze their eggs, and most (67 %) have been single on the time they accomplished the survey.
General, simply 6 % of the ladies had used their frozen eggs on the time of the survey, and three % had given start utilizing the frozen eggs. [5 Myths About Fertility Treatments]
About 1 in 5 of the ladies (22 %) had been pregnant sooner or later since freezing their eggs. In most of those circumstances, the ladies had conceived naturally, or had undergone in vitro fertilization utilizing "contemporary" eggs (reasonably than their frozen eggs), and a few of the girls had had miscarriages.
When requested why they hadn't but used their frozen eggs, a lot of the girls mentioned that they did not need to be a single mother or father, or that they needed to attempt to conceive naturally.
And when requested in the event that they nonetheless deliberate to make use of their frozen eggs, practically 70 % mentioned it could rely upon their circumstances, whereas simply 21 % mentioned they have been positively planning to make use of their eggs.
The researchers concluded that info on the proportion of ladies who return to make use of their saved eggs, in addition to details about their causes for not utilizing the eggs and their general being pregnant outcomes, "would possibly assist girls to make extra knowledgeable choices about whether or not to freeze oocytes," they wrote within the Jan. 6 challenge of the journal Human Copy.
Earlier research have had comparable findings. For instance, researchers at one fertility clinic in Santa Monica, California, discovered that, from 2007 to 2012, 232 girls froze their eggs on the clinic to delay childbearing, however 95 % of those girls nonetheless had not used their eggs by 2015. [5 Surprising Facts About Egg Freezing]
It is necessary to notice that many ladies within the new examine had solely not too long ago frozen their eggs — practically half the ladies mentioned that they had frozen their eggs throughout the final two years, and this may occasionally, partially, clarify why so few girls reported utilizing their eggs, the researchers mentioned.
As well as, the researchers famous that 6 % of ladies within the examine who ended up utilizing their eggs had all used an older methodology for egg freezing, often known as "sluggish freezing," and solely half of those girls who tried to make use of the eggs frozen by this methodology ended up having a child with their frozen eggs. However the girls who froze their eggs in more moderen years (after 2012) used a more recent know-how for egg freezing, referred to as vitrification. And though it is too quickly to inform, it is attainable that the ladies who used this methodology may have a better likelihood of getting a child utilizing their frozen eggs, the researchers mentioned.
Nonetheless, "these outcomes show the varied potential reproductive outcomes and reproductive heterogeneity of ladies who freeze oocytes for nonmedical causes," they mentioned.
When utilizing frozen eggs, the possibilities of being pregnant rely, partially, on how outdated girls are once they froze their eggs, and the variety of eggs they selected to freeze.
A 2016 examine discovered that the possibilities of having no less than one child from eight frozen eggs was 41 % in girls who're youthful than 35 once they freeze their eggs, and 20 % in girls who're 35 or older once they freeze their eggs.
The brand new examine was funded by Melbourne IVF, the fertility clinic the place individuals went to freeze their eggs.
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