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Study shows vaccinated have less autism

Can't see anything about it in the abstract. Only says they were matched for year of birth, sex and GP. Would be interesting to do the same but matching for family history of autism.
 
Professor Yaffle said:
Probably down to families with one autistic kid refusing vaccination for their second, I would guess.
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Data on the other probable autism risk factors were collected from mothers.
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As the only thing that is known about autism is that it has a genetic component, I would think that the mothers were asked if there was a family history of autism.
 
Eos of the Eons said:
I thought they controlled for that?
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Strangely, they didn't control for family history. The ORs are rather extraordinary too which have not been observed in any other study, much larger studies. I will have to take a closer look at the methods to see how they could have ended up with that.
 
What I got from the study is that autism is in both groups, of course. They aren't suggesting prevention of disease decreases autism, but they are again showing that MMR does not cause autism. If adjusted for parents who stopped vaccinating after getting one autistic kid, it might level it out to even, but I'm not sure it would. I don't see any indication yet that these kids in the study had vaccinated autistic siblings in the unvaccinated group.

The main point is that there certainly is no reason to believe MMR causes autism, again.
 
Professor Yaffle said:
Probably down to families with one autistic kid refusing vaccination for their second, I would guess.
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My first thought was that it has something to do with the fact that what is increasing is the number of diagnoses of autism, not autism itself in any objective sense. I believe that the true rate of autism is probably unchanged but that awareness of it has increased and now people see at least a little bit of it in any slightly nerdy, socially awkward person. I myself recently came to the conclusion that I probably have asperger's, if it is a real thing. However, I think it's really more of a personality type than a disease.

ETA: What I mean is that people who are more aware of autism are probably more likely to be anti-vaxers, and also more likely to "diagnose" it in their children. And they can find doctors willing to confirm that.
 
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