Answers.com > Wiki Answers > Categories > Health > Conditions and Diseases > How rare is Rett Syndrome?

How rare is Rett Syndrome?

In: Conditions and Diseases, Autism, Genetics [Edit categories]

Answer:

According to the International Rett Syndrome Foundation, it occurs in 1 out of every 10,000 to 23,000 female births. It is very rare, so the rate of occurrence is not known absolutely. Almost all of those alive with Rett Syndrome are female; males who have the genetic mutation do not have a second X chromosome to compensate for the defective gene so they usually die before birth or shortly thereafter. The males that survive almost always have an extra X chromosome (XXY).

First answer by Ljyoung13. Last edit by Ljyoung13. Contributor trust: 407 [recommend contributor ]. Question popularity: 3 [recommend question].

[report abuse]

Can you answer these Conditions and Diseases questions?

	How can creeping eruption harm humans if not treated?	Answer it!
	What is some general information on Trypanophobia What are the problems that can arise if one suffers from it?	Answer it!
	Why would getting in cold water make you feel dizzy?	Answer it!
	How many people are diagnosed with type 2 diabetes every year?	Answer it!
	What causes valvular disease?	Answer it!

Relevant answers:

What is Rett Syndrome?
It is a severe neurological disorder affecting females mainly. Rett syndrome is a neurological and neurodevelopmental disorder that mostly occurs in females and is the result of a chromosomal...
Is Down syndrome the same as Rett syndrome?
The symptoms, characteristics and outcomes of these two conditions are quite different. Down syndrome is a developmental disorder. Rett syndrome is classified more specifically as a pervasive...
Is Tourette syndrome rare?
Once thought to be a rare disorder, TS is one of the most common genetic conditions
What are facts about Rett Syndrome?
one interesting fact is that it strikes at random, it has nothing to do with the child's family history.
Is Rett syndrome the same as autism?
No, Rett Syndrome is not the same as autism. However, both are pervasive developmental disorders (also known as autism spectrum disorders) and have certain characteristics in common. See the related...