A first study of its kind has been completed on more than 650 children comparing vaccinated and unvaccinated children,
In this survey of more than 400 mothers, they compared their vaccinated and unvaccinated children on a wide range of health outcomes to determine if there was an association between vaccination and neurodevelopmental disorders (NDD), and if there is. this association remains significant after adjustment for other measured factors.
The conclusions are chilling: Those vaccinated had a higher rate of allergies and autism spectrum disorders, attention deficit hyperactivity disorder and / or a learning disability (NDD) than those not vaccinated.
Below is the study summary
Vaccination and health outcomes: A survey of vaccinated and unvaccinated children 6 to 12 years old based on reports from mothers
Background: Vaccines have prevented millions of infectious diseases, hospitalizations, and deaths among American children. However, the long-term health outcomes of the routine vaccination program remain unknown. Studies have been recommended by the Institute of Medicine to address this question.
Specific objectives: Compare vaccinated and unvaccinated children across a wide range of health outcomes, and determine whether an association found between vaccination and neurodevelopmental disorders (NDD), if any, is still significant after adjustment for other measured factors.
Design: A cross-sectional survey of mothers of homeschooled children.
Methods: Schools in four states (Florida, Louisiana, Mississippi and Oregon) were asked to send an email to their members asking mothers to complete an anonymous online questionnaire about the vaccination status and health outcomes of their biological children. from 6 to 12 years old.
Results: A total of 415 mothers provided data on 666 children, of whom 261 (39%) were not vaccinated. Vaccinated children were significantly less likely than non-vaccinated children to be diagnosed with chickenpox and whooping cough, but significantly more likely to have been diagnosed with pneumonia, otitis media, allergies, and NDD (defined as Autism Spectrum Disorder, Attention Deficit Disorder with Hyperactivity and / or a learning disability). After adjustment, the factors that remained significantly associated with NDD were vaccination (OR 3.1, 95% CI: 1.4, 6.8), male (OR 2.3, 95% CI: 1 , 2,3,3) and preterm delivery (OR 5.0, 95% CI: 2.3, 11.6). In a final adjusted model, vaccination, but not preterm delivery, remained associated with NDD, while the interaction of preterm delivery and vaccination was associated with a 6.6-fold increase in the odds of NDD (95% CI: 2 , 8, 15.5).
Conclusions: In this study based on the mothers' reports, the vaccinated had a higher rate of allergies and NDD than the unvaccinated. Vaccination, but not preterm delivery, remained significantly associated with NDD after controlling for other factors. However, preterm birth combined with vaccination was associated with an apparent synergistic increase in the odds of NDD. More research with larger and independent samples is needed to verify and understand these unexpected results in order to optimize the impact of vaccines on the health of children.
Mawson AR, Ray BD, Bhuiyan AR and Jacob B (2016). Vaccination and Health Outcomes: A Survey of 6- to 12-year-old Vaccinated and Unvaccinated Children based on Mothers' Reports. Front. Public Health 4: 270. doi: 10.3389 / fpubh.2016.00270
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