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.
Which gender is more likely to have downs?
Overall, the two sexes are affected roughly equally. The male-to-female ratio is slightly higher (approximately 1.15:1) in newborns with Down syndrome, but this effect is restricted to neonates with free trisomy 21.
Who is Down syndrome most common in?
Down syndrome occurs in people of all races and economic levels, though older women have an increased chance of having a child with Down syndrome. A 35 year old woman has about a one in 350 chance of conceiving a child with Down syndrome, and this chance increases gradually to 1 in 100 by age 40.
What are the signs of a baby with Down syndrome?
Some common physical features of Down syndrome include:A flattened face, especially the bridge of the nose.Almond-shaped eyes that slant up.A short neck.Small ears.A tongue that tends to stick out of the mouth.Tiny white spots on the iris (colored part) of the eye.Small hands and feet.More items •6 Apr 2021