Compared to younger women,the risk of having having a baby with Down syndrome is higher in women who are over 40 years of age.

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As women age, the chances of their eggs having an abnormal number of chromosomes, including an extra copy of chromosome 21 which causes Down syndrome, increases. Therefore, the risk of having a baby with Down syndrome is higher for women over 40 years of age compared to younger women.

Compared to Younger Women,the Risk of Having Having a Baby