Prevalence of pervasive developmental disorder in Down's syndrome.

Lowenthal R.; Paula C.S.; Schwartzman J.S.; Brunoni D.; Mercadante M.T.

Prevalence of pervasive developmental disorder in Down's syndrome.

Tipo

Carta ao editor

Data de publicação

2007

Periódico

Journal of autism and developmental disorders

Citações (Scopus)

73

Autores

Lowenthal R.
Paula C.S.
Schwartzman J.S.
Brunoni D.
Mercadante M.T.

Resumo

The frequencies of pervasive developmental disorder (PDD) in Down's syndrome (DS) have been reported from 1% to 11%. However, it is not clear if the frequency of this co-occurrence is higher or lower than in other mental retardations. We study a large sample of DS population, finding a PDD frequency of 15.6%, with 5.58% of autism (eight males and two females) and 10.05% of PDD non autism (nine males and nine females. The meaning of this frequency is discussed.