Who is most affected by Down syndrome?
Women who are 35 years or older when they become pregnant are more likely to have a pregnancy affected by Down syndrome than women who become pregnant at a younger age. However, the majority of babies with Down syndrome are born to mothers less than 35 years old, because there are many more births among younger women.
Is Down syndrome more common in males or females?
Down syndrome appears to be more common among boys than girls, the study indicates. The condition is also seen more frequently in Hispanic children at birth, though the number of these children appears to level off with that of white children as they age. Black children appear less likely to have Down syndrome.
What ethnic group is most affected by Down syndrome?
Results: The odds ratio and population attributable risk of Down syndrome due to maternal age of 35 years or older were highest for Mexican Americans, intermediate for African Americans, and lowest for non-Hispanic Whites.
How is the family of a person with Down syndrome affected?
Like any child, those children with Down syndrome in cohesive and harmonious families were also less likely to have behavior problems and more likely to have higher levels of functioning. Mothers expressing poor relationships with the child and family were more likely to have high stress scores.
Does father’s age affect Down syndrome?
Dr. Fisch and his colleagues found that the rate of Down syndrome steadily increased with advancing paternal age for the maternal age group of 35 to 39 years. The greatest increase, however, was seen in the maternal age group of 40 years and older with increasing paternal age.
What age group is high risk for someone with Down syndrome?
Women over age 35 are at higher risk for giving birth to a child with Down syndrome. People have long recognized there is a connection between maternal age and Down syndrome.
Is Down syndrome becoming more common?
In recent years, Down syndrome has become more common, and children with Down syndrome are living longer.
How common is Down syndrome in pregnancy?
The chance of having a child with Down syndrome increases over time. The risk is about 1 in 1,250 for a woman who conceives at age 25. It increases to about 1 in 100 for a woman who conceives at age 40. The risks may be higher.
Can 2 Down syndrome have a normal baby?
Most men with Down syndrome cannot father a child. In any pregnancy, a woman with Down syndrome has a 1 in 2 chance of conceiving a child with Down syndrome. Many of the pregnancies are miscarried.