Chromosome 22q11 deletions are not found in autistic patients identified using strict diagnostic criteria

A group of 103 subjects with a strict diagnosis of autism were tested for deletion of band q11.2 on the long arm of chromosome 22. No deletions were found, indicating that when a patient has been diagnosed with autism using strict and consistent criteria, in the absence of other indications, it is unlikely that this individual will have a 22q11 deletion. Testing for 22q11 deletions is therefore unlikely to be necessary in these patients. Am. J. Med. Genet. (Neuropsychiatr. Genet.) 96:15-17, 2000.