How to avoid criticism

BMJ 2002; 325 doi: (Published 24 August 2002) Cite this as: BMJ 2002;325:i

Rarely a month goes by in the developed world without a claim or counterclaim about autism and the role of MMR vaccine. Last week, from America, came reports of an MMR antibody in children with autism but not in controls (17 August, p 354. This week we weigh in with another study using the UK General Practice Research Database.

Corri Black and colleagues have used the database to see if there is a relation between childhood autism and gastrointestinal disorders (a variant of autism characterised by bowel problems has been linked to MMR vaccine). They find no such relation: 9% of 96 …

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