2009: UK Scientists Find 1 in 66 School Autism Rate

[Sheri Nakken]

http://bjp.rcpsych.org/cgi/content/abstract/194/6/500

UK Scientists Find 1 in 66 School Autism Rate
"Prevalence of Autism-Spectrum Conditions: UK School-Based Population Study"
(Abstract)

Simon Baron-Cohen, BA (Hons), PhD, FBPsS, MPhil (Clinical Psychology)*, Fiona J. Scott, BSc (Hons), PhD, C. Psychol* and Carrie Allison, BA (Hons)*, The British Journal of Psychiatry (2009) 194: 500-509. doi: 10.1192/bjp.bp.108.059345

Background
Recent reports estimate the prevalence of autism-spectrum conditions in the UK to be 1%.

Aims
To use different methods to estimate the prevalence of autism-spectrum conditions, including previously undiagnosed cases, in Cambridgeshire.

Method
We carried out a survey of autism-spectrum conditions using the Special Educational Needs (SEN) register. A diagnosis survey was distributed to participating schools to be handed out to parents of all children aged 5-9 years. The mainstream primary school population was screened for unknown cases.

Results
The prevalence estimates generated from the SEN register and diagnosis survey were 94 per 10 000 and 99 per 10 000 respectively. A total of 11 children received a research diagnosis of an autism-spectrum condition following screening and assessment. The ratio of known:unknown cases is about 3:2 (following statistical weighting
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Sheri Nakken, R.N., MA, Hahnemannian Homeopath
Vaccination Information & Choice Network, Washington State, USA
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Sheri Nakken, R.N., MA, Hahnemannian Homeopath
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