Rainfall linked to autism
County-level autism prevalence rates and counts among school-aged children were positively associated with a county’s mean annual precipitation. – Children living in counties with higher levels of annual precipitation appear more likely to have higher prevalence rates of autism, according to a report in the November issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals. The results raise the possibility that an environmental trigger for autism may be associated with precipitation and may affect genetically vulnerable children.