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Autism is associated with several genetic disorders, [4] perhaps due to an overlap in genetic causes. [5] About 10–15% of autism cases have an identifiable Mendelian (single-gene) condition, chromosome abnormality, or other genetic syndrome, [6] a category referred to as syndromic autism.
A 2003 review of epidemiological studies of children found autism rates ranging from 0.03 to 4.84 per 1,000, with the ratio of autism to Asperger syndrome ranging from 1.5:1 to 16:1; [142] combining the geometric mean ratio of 5:1 with a conservative prevalence estimate for autism of 1.3 per 1,000 suggests indirectly that the prevalence of AS ...
The term Asperger syndrome typically excluded a general language delay. [19] Other differences noted in features of high-functioning autism and Asperger syndrome included the following: [12] [20] [21] [22] Lower verbal reasoning ability; Better visual/spatial skills (Being uniquely artistically talented) Less deviating locomotion (e.g. clumsiness)
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11] Sensory abnormalities are also included in the diagnostic manuals ...
The study found a far lower autism rate in younger adults than in children, but it also found that autism is increasing at a faster pace among those adults. The rate of autism for adults ages 26 ...
Research has been carried out in the UK and Australia on the cost-return on investment of these measures. Over a period of eight years, employment support for people with high-functioning autism or Asperger syndrome in the UK yielded a profit. [222] Specific measures for people with autism are more effective than general measures. [223]
The development of autism is associated with several prenatal risk factors, including advanced age in either parent, diabetes, bleeding, and maternal use of antibiotics and psychiatric drugs during pregnancy. [1] [51] [52] Autism has been linked to birth defect agents acting during the first eight weeks from conception, though these cases are ...
The ICD-10 equivalents also became part of its definition of autism spectrum disorder, as of the ICD-11. PDD-NOS included atypical autism, a diagnosis defined in the ICD-10 for the case that the criteria for autistic disorder were not met because of late age of onset, or atypical symptomatology, or both of these. [5]