Friday, 16 September 2011
Since the people controlling the research money won’t touch the question of comparing autism rates in vaccinated and unvaccinated populations, a non-scientist has picked up the torch. Andreas Bachmair, a natural health practitioner in Germany, asked people to fill out a form if their kids were unvaccinated, providing information about the overall health of their children. He spread the word on Facebook and on his website, German and English versions.
He got responses on 7,851 participants, the majority of whom are under the age of 2. Of course, a scientist would call his results skewed, because the participants’ parents selected themselves. A well-made study involves random selection and a matched control group.
Nevertheless, it’s interesting to look at his results. He compared his unvaccinated group to those in a separate study called KIGGS (http://www.kiggs.de/service/english/index.html) where parents of 17,641 participants, all in Germany, answered very similar questions. Presumably they were all or mostly vaccinated. So there is a control group in a way.
Is autism less prevalent in the unvaccinated? Since autism often doesn’t show up until much later than age 2, his data aren’t helpful with the autism question.
But his data showed levels of allergy, athsma, and ear infections in the unvaccinated that were much lower than the KIGGS group. In the KIGGS group, 4.7% suffer from asthma, 10.7% from hayfever and 13.2% from neurodermatitis.
The prevalence of asthma among unvaccinated children was around 2.5%, hayfever 2.5% and neurodermatitis 7%, Bachmair reported.