People affected by autism believe increase is ‘real,’ not diagnostic

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There has been a major increase in the number of children diagnosed with autistic spectrum disorders over the last two decades - the question is why? Researchers have found a sharp difference between the beliefs of ordinary people and medical experts about the reasons for the increased incidence of autism.

Expert consensus is that the rapid increase is a result of changes in diagnostic practice, but many lay people directly or indirectly affected by the disorder believe that the number of cases have increased in absolute terms. Many also believe that increasing incidence is the result of exposure to new environmental hazards and other effects of modern lifestyles.

A study carried out by researchers from the universities of Exeter and Bristol examined the ideas put forward in unsolicited correspondence to scientists carrying out research into the causes of autism. “Our study highlights the contrast between lay explanations of the increasing prevalence of autism and the consensus opinion of medical experts,” says researcher Ginny Russell. “It also demonstrates the strength of lay belief that the rise is due to risks from modern technologies and changing lifestyles, showing a latent unease with these developments.”

The researchers, from Egenis, a research centre at the University of Exeter, and the department of community based medicine at the University of Bristol, have published their findings in the journal Child: Care, Health and Development.

“There is no doubt that the reported prevalence of autistic spectrum disorders has increased spectacularly over the last 20 years,” said Ms Russell. “Medical consensus is that the increase is not a ‘real’ increase in cases but is the result of the diagnosis being made more often.

“But our examination of letters and phone calls received by scientists carrying out research into the environmental causes of autism shows that, in the opinion of many people in contact with autistic children, it is not diagnosis but true incidence which has increased, and these people think that we should be investigating what factors have led to this increase. They believe that it goes hand in hand with lifestyle changes in the late 20th and early 21st century, changes which are causing autistic spectrum disorders to occur more often.”

More than 40 different environmental factors were put forward as potential causes by correspondents, including foetal monitoring, vaccines, mobile phone radiation, and food additives.

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Notes for Editors

1. The study, ‘A qualitative analysis of lay beliefs about the aetiology and prevalence of autistic spectrum disorders’, by G. Russell, S. Kelly and J. Golding is available online from the journal Child: Care, Health and Development. DOI: 10.1111/j.1365-2214.2009.00994.x. http://www3.interscience.wiley.com/journal/122589798/abstract . Media wishing to receive a copy of the paper may email .

Child: Care, Health and Development is the official journal of BACCH, Swiss Paediatric Society and ESSOP and is published by Wiley-Blackwell.

2. Ginny Russell is a PhD student and Dr Susan Kelly is a Senior Research Fellow at Egenis, the ESRC Centre for Genomics in Society, a research centre at the University of Exeter funded by the UK’s Economic and Social Research Council (ESRC) to study the meaning and social implications of developments in genomic science: http://www.genomicsnetwork.ac.uk/egenis/

3. For further details or to arrange an interview, contact Claire Packman, Egenis Communications Officer, on 01392 269126 or 07913 871619,

Contact: Claire Packman

44-139-226-9126
University of Exeter

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"Medical consensus is that the increase is not a �real� increase”. It certainly serves the interest of supposed “medical consensus” to think the rise is unreal, since medical consensus treatments may be one of the causes of autism, and because the medical consensus has no idea how to treat this problem. It is non-consensus medicine that is working on real treatments based on real understanding, proving once more that “truth is not decided by majority vote” Dolev Gilmore, author of “NUTRITON AND YOUR CHILD’S SOUL: DON QUIXOTE’S HEART-CRY”

posted by Dolev Gilmore on 12/10/2009 at 3:28 am -08:00