I suspect that number is deceiving as many Amish have their own doctors that would likely not report such statistics. couple that with families that would not seek medical attention for autistic kids.... That’s a hard argument to include to make this case in my opinion.
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Amish do not have their own doctors. Amish dont go beyone 6th grade.
I didn't say they were registered with the AMA. :o) I use the term "doctor" loosely. I met a carpenter that was also a "vet" and saw "patients" in the Amish community. I got the impression, he recommended weather some of his community members should see a doctor. Headaches, sore throats, a cough, etc.
I'm no expert. I could be wrong.