According to a large new study completed by Kaiser Permanente, pregnant women receiving prenatal tetanus, diphtheria toxoid, and acellular pertussis (Tdap) do not increase their child’s likelihood of developing autism. The study is the first to research the effects of prenatal vaccines and autism in children. Research completed supports the CDC recommendation that all pregnant women receive the Tdap. In the study, unexposed women to Tdap had a higher incidence of having a child with Autism.
The author of the study noted in the discussion, “In this large retrospective observational cohort study of 81 993 pairs of diverse pregnant women and their children, we found no evidence of increased risk for ASD diagnosis associated with Tdap vaccination during pregnancy.”
Anti-vaccine proponents have warned women around the world to avoid vaccinations during pregnancy. Many link preservatives found in vaccines to causing autism.
In order to confirm or dispel the rumors, studies such as the one completed must be done. According to the authors, the study is one of the largest completed to research if a link exists.
As a result of the speculation by those critical of vaccines, the study completed was a retrospective cohort from January 2011 through December 2014.
Researchers said the vaccinated women vaccinated were more likely to be Asian American or Pacific Islander, first-time mothers, have a higher education, receive influenza vaccination prenatally, and give birth at term.
After researchers completed the study, they found the vaccinated women had fewer children diagnosed with Autism than the unexposed women.
Vaccinated women’s incidence of autism in the child is 3.78 per 1,000 person-years. Unvaccinated women’s incidence of autism in the child was slightly higher at 4.05 per 1000 person-years.
Researchers concluded that the study indicated there is no direct correlation between the Tdap and autism. However, the authors mentioned the need for more studies to confirm their conclusion. Furthermore, to strengthen the outcome of the study, the authors recommend additional studies with longer follow-up periods and more birth years.
For now, there is compelling evidence for pregnant women that vaccines are safe during pregnancy. Additionally, women should not worry that the vaccine will cause their child to develop autism. The CDC recommends all pregnant women receive vaccinations to protect their baby from serious diseases.
Vaccinate yourself to protect your child.
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