Vaccinated Children Likely to Have a Higher Risk of Developing Autism

To date, there has been no government-funded study on health outcomes in vaccinated vs unvaccinated populations. In other words, the rates of autism, ADHD, asthma, diabetes, and other chronic diseases have not been compared in vaccinated and unvaccinated populations.

In 2007, Generation Rescue funded a Cal-Oregon Vaccinated vs Unvaccinated Survey. Amongst boys age 11-17, the study found an RR (“relative risk”) of 2.12 for autism and 4.17 for ADHD when comparing prevalence amongst vaccinated versus unvaccinated children. These findings suggest that vaccines may have been a contributing causal factor in boys born from 1990-1996 in approximately 68% of autism cases and 81% of ADHD cases. Generation Rescue wrote on this website:

“Generation Rescue is not representing that our study proves that the U.S. vaccine schedule has caused an epidemic in neurological disorders amongst our children. We are a small non-profit organization. For less than $200,000, we were able to complete a study that the CDC, with an $8 billion a year budget, has been unable or unwilling to do. We think the results of our survey lend credibility to the urgent need to do a larger scale study to compare vaccinated and unvaccinated children for neurodevelopmental outcomes.”

A study by Brimacombe et al in 2007 (Brimacombe M, Ming X, Parikh A. Familial risk factors in autism. JChild Neurol. 2007; 22:000-000) found that children born to families with certain medical histories (e.g., thyroid disorders, epilepsy, rheumatoid arthritis, diabetes) have a much higher rate of autism prevalence. In a 2008 article, SafeMinds board member Scott Laster extrapolated from this data and the 2007 CDC autism prevalence report to calculate the risk of autism for children born with certain family medical histories. The calculations indicated that autism risk in certain sub-groups ranged as a high as a 1 in 7 chance for children born into a family with a medical history of thyroid disorders. A 2009 article by Laster used the results from the initial article, plus the Generation Rescue vaccinated vs unvaccinated study, to analyze the potential for reducing autism rates. The article determined retrospectively that allowing an alternative vaccination schedule for about 2% of the population could have avoided 30% of the autism cases. (see Potential to Reduce Autism Prevalence via Alternative Vaccination based on Family Medical History v1 04-19-09)