For many women , having a child is not necessarily at the top of their precedence list . However , this may be more true for women bear to mothers who are slightly older , as a novel report has unwrap they are less potential to have tike , but we ’re not sure why .

A team conduct by Olga Basso from McGill University in Montreal , Canada , looked at the lives of over 43,000 women born in the US   between   1930 and 1964 . Their field of study ,   publish inHuman Reproduction , found that char born to mother who had conceived after 30 were more likely to not have a child compare to daughter whose female parent had them young . For more clarity , it was show that 20 pct of daughters take over from mothers who conceptualize after 30 went on to be childless , whilst 15 per centum of mothers who were 20 - 24 and less than 13 percent of teenage mother were the same .

Despite the strong data point , the team readily admit the link between daughters of honest-to-god female parent and being childless is still not clear . They did n’t retrieve fertility rate consequence to be the cause , as neither daughters with older mothers or ones with younger ones were more potential to experience any . Basso toldNew Scientistthat perhaps having a mother who decided to have children later “ termination in daughters behaving otherwise . ”

The squad also found that woman who were n’t married or who had   post - graduate arcdegree were amongst the most probable   to not have small fry , but further depth psychology reveal that these could not amply   account for the grade of childlessness they found .

Previous research has found   that advanced degree may play a role in why some have opted out of want to reproduce .   “ The most educated women still are among the most probable never to have had a child , " accord toPew Research Center . However , the squad found even among women who hold a postgraduate arcdegree , those gestate to old mothers were still more potential to be childless .

There was also very little evidence to show that the birth of a daughter had anything to do with their father ’s age when it came to being childless .

Choosing to retard when to have a child as well as choosing not to have children whole is on the rise , so the authors   evoke " evaluate the influence of maternal old age at birthing on offspring fertility " is a public health precedency .