Combien de personnes affecte le Syndrome de Rett? Est-ce que cela a la même prévalence chez les hommes et les femmes ? Et dans les différents pays ?
Original
In occurs mainly in females. It's prevalence is 1 in 10,000. When it does occur in male, it is very likely they have an extra x chromosome. Most males die before birth, and those who survive, usually don't survive past 2 years.