Article

DSM-IV vs DSM-5 diagnostic criteria for toddlers with autism.

Department of Psychology, Louisiana State University, Baton Rouge, LA 70803, USA.
Developmental neurorehabilitation (Impact Factor: 1.48). 06/2012; 15(3):185-90. DOI: 10.3109/17518423.2012.672341
Source: PubMed

ABSTRACT To evaluate prevalence rates of autism and autism symptomatology in toddlers using DSM-IV vs DSM-5 criteria.
Two thousand seven hundred and twenty-one toddlers at risk for a developmental disability participated. DSM-IV and DSM-5 criteria were applied and overall prevalence using each set of criteria was established. Groups were also compared on BISCUIT-Part 1 scores to determine if groups differed on autism symptomatology.
DSM-5 resulted in 47.79% fewer toddlers being diagnosed with ASD compared to those on the DSM-IV. Toddlers diagnosed according to DSM-5 exhibited greater levels of autism symptomatology than those diagnosed with DSM-IV, but the latter group still exhibited significant levels of autism symptomatology.
The proposed DSM-5 will result in far fewer persons being diagnosed with ASD. These results replicate findings from two previous studies, with older children/adolescents and adults. As a result of these new criteria, far fewer people will qualify for needed autism services.

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