Autism clusters identified in California; associated with areas of greater parental education

Researchers at UC Davis have identified 10 locations in California where the incidence of autism is higher than surrounding areas in the same region. Most of the areas, or clusters, are in locations where parents have higher-than-average levels of educational attainment. Because children with more educated parents are more likely to be diagnosed with an autism spectrum disorder, one need look no further for a cause, the authors say. The other clusters are located close to major autism treatment centers.

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