A retrospective cohort study conducted in Denmark
studying all the children born in the country between 1991 and
1998 revealed that there was no increased risk of autism in
children receiving the MMR vaccine versus those who were not
vaccinated. The relative risk of developing autism in those
vaccinated for MMR versus the unvaccinated was 0.92, with a 95%
confidence interval of 0.68 to 1.24, showing no significant
There is no significant difference in rates of autism in children receiving the MMR vaccine versus those who are not vaccinated.
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