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Channel: Epidemiology – Left Brain Right Brain
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Excess Mortality and Causes of Death in Autism Spectrum Disorders: A Follow...

Long term studies are an under explored area in autism. Research interest in autism has grown a great deal and understanding of autism has grown. Thus we have few studies from the past to form the...

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Brief Report: Comparability of DSM-IV and DSM-5 ASD Research Samples

Probably the most hotly debated topic in autism diagnosis and research this year has involved what changes may occur when the DMS-IV gives way to the DSM-5. The DSM is the Diagnostic and Statistical...

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Immunization uptake in younger siblings of children with autism spectrum...

If one child has autism, the chance that a younger sibling will have autism is about 18.7%. (see the study Recurrence Risk for Autism Spectrum Disorders: A Baby Siblings Research Consortium Study and...

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A multicenter blinded analysis indicates no association between chronic...

There was much discussion of the possible imprtance of the xenotropic murine leukemia virus-related virus (XMRV) in conditions such as chronic fatigue syndrome or myalgic encephalomyelitis (CFS/ME),...

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Folic acid supplements and autism

A recent study claims that women who take folic acid supplements before conception are at a lower risk of having an autistic child. In Association Between Maternal Use of Folic Acid Supplements and...

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No, the autism prevalence did not go down in Denmark after the removal of...

Once there was an open question of whether the thimerosal containing vaccines, previously used for infants in the U.S. could be contributing to the increase in autism diagnoses being reported. Even...

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No, the autism “rate” in California did not go down after removing thimerosal...

I recently attended a talk where the speaker showed autism prevalence by age group for a large HMO in California. The administrative prevalence (fraction of people in the HMO identified autistic) was...

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California Special Education autism counts, ages 3-5 over the past decade

The California Department of Developmental Services data, once called “the gold standard” for autism epidemiology by those promoting the vaccine-autism link, shows that autism rates are higher today...

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CDC-HRSA report: Changes in Prevalence of Parent-reported Autism Spectrum...

A new report came out today: Changes in Prevalence of Parent-reported Autism Spectrum Disorder in School-aged U.S. Children: 2007 to 2011–2012. I’ll come back for more detail and discussion soon, but...

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Autism Rate 2%, what now?

Autism prevalence data are always news makers. Although, maybe it’s just me, but the announcement of a new autism prevalence estimate for the U.S. didn’t seem to be as big a news story as previous...

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IMFAR program is now online

IMFAR, the International Meeting for Autism Research, is held in the spring of each year. Which makes me wonder, did the people who organized this have to go through IEP meetings? I ask because IEP...

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Autism reported at 1 in 50, but some parents no longer report their child is...

A recent study reported that 1 in 50 children in the U.S. are autistic. This is based on parent report via a telephone survey, the National Survey of Children’s Health. The recent survey was taken in...

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Comment on: A Danish population-based twin study on autism spectrum disorders.

There has been much discussion of twin studies in autism research for a long time. The reason is that if is found that “identical” (monozygotic) twins are often both autistic, that points to genetics...

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Autism is more prevalent in urban areas

When my kid was first diagnosed autistic I was presented with the idea of the “autism epidemic”. There was a great deal of discussion at that time about the rising number of clients in the California...

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Autism prevalence in Iceland 1.2%

Years back (2007 to be exact) an autistic blogger wrote a piece “Moving Toward a New Consensus Prevalence of 1% or Higher“. In the late 1990′s, studies had come out showing a prevalence of about 1% in...

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A fishing expedition at Vaccine Court

The U.S. Court of Federal Claims has a section devoted to adjudicating claims of vaccine injury. This is often referred to as the “Vaccine Court”. Individuals or their families can file a claim...

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The Amish may not be a great population for a vaccinated/unvaccinated study

The recent attempt to legislate brought back the subject of the Amish, vaccination and autism. It’s an old idea, made popular by a journalist whose work was, shall we say, less than complete. House...

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Details about the potentially “recovered” autistic kids in the National...

I recently wrote about data from the National Surevey of Children’s Health. In specific, I explored the question of just how many of those kids were identified as autistic at some time in the past and...

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Comment on “Potential Impact of DSM-5 Criteria on Autism Spectrum Disorder...

One of the big topics of discussion in the past few years was the roll out of the DSM-5. The new criteria for what defines autism. One could find those saying “this is designed to undiagnose autistics...

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No, the autism prevalence in Denmark did not go down with the removal of...

There’s a story that goes around the vaccine/autism groups that, contrary to published reports, the autism rate in Denmark went down after thimerosal was removed from their vaccines. Of course, this is...

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