In taking part in a recent discussion on vaccines and autism, I got involved in a discussion on whether or not there is an autism epidemic. I didn't think that there was one, and my friend thinks that there is. As evidence, I submitted the following study.
http://pediatrics.aappublications.org/cgi/content/full/117/4/1028My friend fired back with this one:
http://pediatrics.aappublications.org/cgi/content/full/115/3/e277They appear to essentially be saying the exact opposite thing. So, my question is why? I have a couple ideas as to what might account for the differences between the studies, but I wanted to get some more brain power in on this. If anyone has any thoughts, I'd love to hear them.
:hi:
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