* there is no evidence linking acetaminophen to autism
* frequency of autism diagnosis is growing at a considerable rate: https://en.m.wikipedia.org/wiki/Epidemiology_of_autism
* males are diagnosed at a rate of 4.3:1 compared to females
The current evidence suggests challenges in the current diagnostic approach because it does not appear that females less inclined to possess autism though they are diagnosed at such a lower rate. That indicates poor and incomplete means of identification. Despite the greatly increased frequency of overall diagnosed individuals the numbers of impacted persons might actually be quite a bit higher.
My wife works special education for a large public school system and the difference in population, both quantity and diversity, is stunning compared to just a prior generation. You can’t help but wonder if it’s something in the food supply or some other widely distributed factor that compounds over time and impacts either early childhood development or environmental/parental conditions.