Mazumdar, Soumya; King, Marissa; Liu, Ka-Yuet; Zerubavel, Noam; Bearman, P
This article identifies significant high-risk clusters of autism based on residence at birth in California for children born from 1993 to 2001. These clusters are geographically stable. Children born in a primary cluster are at four times greater risk for autism than children living in other parts of the state. This is comparable to the difference between males and females and twice the risk estimated for maternal age over 40. In every year roughly 3% of the new caseload of autism in California...[Show more]
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