You have totally misread the study. Though I suspect we could put a menu in front of you and get the same automatic thoughtless response.
This is another example showing that the alleged increase in autism may not be as real as people like you like to claim.
The adults were diagnosed using the schema of the time, however using current differentials they can be classified as autistic. It provides strong evidence that this "epidemic" is one of diagnostic substitution and not caused by vaccines.
Other studies have also shown that there is a 1-to-1 correspondence in the reduction of other ND disorders that perfect matches the increase in autism spectrum disorders.
BTW you obviously don't know what Hegelian dialectic means. Don't try to use it again.