Risk of having a child with Down syndrome:
d. Increases with increase in maternal age(Ref: Nelson's 20/e p 610-614)Risk of Down Syndrome Increased with Increase in Maternal AgeMaternal ageIncidence of Down Syndrome20 years1 in 150030 years1 in 90040 years1 in 10045 years1 in 30
Is unaffected by maternal age
Decreases with increase in maternal age
Increases with increase in paternal age
Increases with increase in maternal age
Genetics And Genetic Disorders