Autism 'more common than thought'
Autism, and similar disorders, may affect up to one in 100 children, UK researchers have suggested. The figures suggest the condition is more common, as prior to the 1990s, experts said there were four to five cases per 10,000 people in Britain. Researchers said it was unclear whether their higher estimate was due to better diagnosis or increased incidence. Experts said the study showed services for people with autism spectrum disorders (ASDs) had to be improved.
Autism impairs social interaction, communication, and imagination. The spectrum also covers milder conditions, including Asperger's syndrome. They identified 255 who had already been diagnosed as having autistic disorders and 1,515 judged to be possible undetected cases. A randomly selected sub-group of 255 children was chosen for in-depth clinical assessment. The prevalence of "classic" childhood autism was 39 per 10,000, and that of other ASDs 77 per 10,000. In total, autistic disorders affected 116 per 10,000 children. The researchers extrapolated their findings to suggest one in 100 British children may have some form of autism.
Professor Gillian Baird, who led the research, said: "Prevalence of autism and related ASDs is substantially higher than previously recognised.
"Whether the increase is due to better ascertainment, broadening diagnostic criteria, or increased incidence is unclear.
"Services in health, education, and social care will need to recognise the needs of children with some form of ASD, who constitute 1% of the child population."
more:
http://news.bbc.co.uk/2/hi/health/5174144.stm