Seems to be an issue of identification more than causation. People with more education are aware of things like autism more in their children, have higher sala

Seems to be an issue of identification more than causation. People with more education are aware of things like autism more in their children, have higher salaries, better jobs, health insurance, etc... All of this would lead to them actually identifying something as being wrong with their children and them taking them to a doctor for diagnosis. Poorer parents without the education background or money would potentially just think, "that's the way kids are" or even if they recognized it, they might not have the money to take them to the doctor for diagnosis. And finally, wealthier people seem to have trends for what they blame the problems of childhood on. Some level of this outbreak of autism is likely parents going to their doctor and saying, "my child is autistic- right?" just as they were doing with ADD years ago. Moreso, the doctors are able to provide prescriptions ($$) and additional visits ($$) to people that have some illness.