Ambling said...
https://www.autismspeaks.org/science-news/no-mmr-autism-link-large-study-vaccinated-vs-unvaccinated-kids
I suppose IAC will never be convinced!
There are so many studies debunking the autism myth.
As I posted earlier in this thread, both the Director of the National Center on Birth Defects and Developmental Disabilities and the head of the CDC both finally had to admit (after hard questioning of course) that a comprehensive study comparing the overall health of a vaccinated population and an unvaccinated population has never been done in the United States.
The two studies you offered don't change anything. I sent you an excellent rebuttal to the first Danish study that you cited and it speaks for itself. The 2nd study you mentioned, Jain et al., has its own problems as you can see:
http://autismrawdata.net/blog/questionable-finding-in-the-sibling-mmrasd-study
The authors list several limitations to their study, which include quantitative bias analysis, nondifferential outcome misclassification, differential outcome misclassification.
The authors list several conflicts of interest http://paulthomasmd.com/2015/05/11/autism-occurrence-by-mmr-vaccine-status-among-us-children-with-older-siblings-with-and-without-autism-study/
They go on to state “these findings indicate no harmful association between MMR vaccine receipt and ASD even among children already at higher risk for ASD. I would add that given the lack of significance in their findings, and study design issues, this study also does not clarify at all whether the MMR was associated with an increased risk of autism or not...
It would be nice to see the data that included those children. It is not clear why those with “neuromuscular, cardiovascular, respiratory, renal, gastrointestinal. hematologic or immunologic, metabolic, other congenital or genetic defects, and malignant neoplasms” were excluded. Several fancy statistical analyses were done adding little to the understanding of this data...
We need straight forward studies that compare apples to apples, compare vaccinated to non-vaccinated or to selectively vaccinated populations...
This study leaves me as uninformed as I was before I read it, on the issue they claim to address: autism rates and their relationship to MMR. Ambling said...
There are so many studies debunking the autism myth.
I don't think so but if you can find a valid study then please share it. (Epidemiology studies don't count, those are the type of “studies” in the 1950's that showed no connection between smoking and cancer.)
Vaccine critics have often demanded “vax-unvax” studies comparing health outcomes fully-vaccinated and never-vaccinated children. The CDC and orthodox medicine generally
REFUSE to conduct or fund such research.
http://vaccinepapers.org/alleged-vax-unvaxed-debunked/
Vaccine promoters use 2 arguments to justify the refusal to study the never-vaccinated:
1) randomization is unethical, because vaccines would need to be withheld from some subjects. Vaccines are so wonderful that it would be unethical to withhold them, even temporarily.
2) observational studies are useless because of selection bias. The unvaccinated differ in many ways from those that choose to be vaccinated, rendering the results meaningless.Ambling said...
The coincidental increase that the anti vaxxers jump on (ignorantly) corresponds to a change in the psychological evaluation of autism, with a broader spectrum of patients being diagnosed under the umbrella of autism.
Again, as has already been stated numerous times, no amount of fact or logic will change an anti vaxxers mind.
The Centers for Disease Control and Prevention (CDC) said recently there was a full 15 percent increase in the rate of autism in just two years, and that
”new diagnostic criteria for autism adopted in 2013 (DSM-5) made only a slight difference in prevalence estimates.” The CDC believes that it must be something in the environment but insist it cannot be vaccines.
https://www.autismspeaks.org/science-news/cdc-increases-estimate-autisms-prevalence-15-percent-1-59-children