Charman, Tony and Pickles, Andrew and Chandler, Susie and Bryson, Susan and Wing, Lorna and Simonoff, Emily and Loucas, Tom and Baird, Gillian
Commentary: Effects of diagnostic thresholds and research vs service and administrative diagnosis on autism prevalence.
International Journal of Epidemiology, 38.
Full text not available from this repository.
||Originality: The first study to test the concordance between historical diagnostic thresholds for autism from the 1960s and contemporary thresholds. Rigour: A novel analysis was conducted to examine concordance between experts familiar with the 1960s rating scheme, a contemporary research team and current ICD-10 criterion. Published in one of the leading epidemiological journals. Significance: The study found less discrepancy between historical and contemporaneous threshold than anticipated with a high proportion of current cases meeting historical thresholds; consistent with the possibility that a real increase might have occurred.
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