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Autism
The most accepted prevalence rate for autism is 10 per 10,000, a rate derived from analysis of 32 separate prevalence surveys conducted between 1966 and 2001. This rate is highly contested however, with some autism advocates and professionals who work with this population, claiming an incidence rate of approximately 1 in 150. Without question, the prevalence rate has been steadily rising in the past decade, but whether this is due to improved diagnostic procedures or an actual increase in incidence is unclear.
Source Retrieved: 04/20/2012
Source Retrieved: 04/20/2012