A family genetic study of autism associated with profound mental retardation

E Starr; S K Berument; A Pickles; M Tomlins; A Bailey; K Papanikolaou; M Rutter

doi:10.1023/A:1005669915105

A family genetic study of autism associated with profound mental retardation

E Starr, S K Berument, A Pickles, M Tomlins, A Bailey, K Papanikolaou, M Rutter

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Abstract

We sought to determine if the family loading for either the broader autism phenotype or for cognitive impairment differed according to whether or not autism was accompanied by severe mental retardation. The sample comprised 47 probands with autism meeting ICD-IO criteria, as assessed by the Autism Diagnostic Interview and the Autism Diagnostic Observation Schedule. Family history interview and findings were compared with those for the higher IQ autism and Down syndrome samples in the Bolton et al. (1994) study. The familial loading for autism and for the broader phenotype was closely comparable to that in the study of higher IQ autism, and different from that for Down syndrome. The family loading for scholastic achievement difficulties was slightly, but significantly, higher when autism was accompanied by severe retardation.

Original language	English
Pages (from-to)	89 - 96
Number of pages	8
Journal	Journal of Autism and Developmental Disorders
Volume	31
Issue number	1
DOIs	https://doi.org/10.1023/A:1005669915105
Publication status	Published - Feb 2001

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AU - Papanikolaou, K

AU - Rutter, M

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A family genetic study of autism associated with profound mental retardation

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