1 Features of autism usually appear during the first three years of life.
2 Autism affects 10 to 15 of every 10,000 births of all racial, ethnic and social backgrounds.
3 Autism is four to five times more common in males than females.
4 Approximately 75% of autistic children are mentally retarded.
5 Females with autism exhibit more severe mental retardation.
6 About a third of all individuals with autism develop seizures – it can also occur with other conditions such as deafness, Down Syndrome and Fragile X Syndrome.
7 People with autism vary widely in abilities, intelligence levels and behavioural characteristics.
source: http://lionsreach.net/autism.htm
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