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.
"BISCUIT-part 1, M-CHAT, and BDI-2. All ASD diagnoses were made by a licensed doctoral level psychologist with over 30 years of experience who had access to the information gathered from the assessment administrations and a record review, and made diagnoses based on clinical judgment using the DSM-IV-TR and the DSM-5 criteria Matson et al. (2012c) 2,721 toddlers at risk for DDs Pediatricians and healthcare professionals previously identified the toddlers as at risk for DD. A licensed doctoral psychologist administered the BISCUIT-part 1, the M-CHAT, and BDI-2° Taheri and Perry (2012) 131 children previously diagnosed with either autistic disorder or PDD-NOS aged 2–12 years Mullen, S-BIS, WPPSI or WPPSI, WISC, VABS, and CARS Worley and Matson (2012) 208 children with ASD aged 3–16 years Participants were recruited though advocacy groups, support groups, schools, and through an outpatient clinic. "
[Show abstract][Hide abstract] ABSTRACT: A systematic review of empirical papers comparing the application of DSM-IV and DSM5 diagnostic criteria for Autism Spectrum Disorders identified 12 papers. The application of DSM5 diagnostic criteria resulted in an approximately one third reduction in Autism Spectrum Disorders. The reduction was approximately two thirds for mild forms of Autism. The implications for practice and research are discussed.
"To determine the ASD subgroups most likely to be affected by the changes in DSM-5 criteria, the seven studies which examined the impact of DSM-5 criteria on one or more specific DSM-IV-TR subgroups within ASD were analyzed separately (Dickerson Mayes et al. 2013; Gibbs et al. 2012; Matson et al. 2012c; Mattila et al. 2011; McPartland et al. 2012; Taheri and Perry 2012; You et al. 2011). Of these, one study (Dickerson Mayes et al. 2013) reported findings of two samples which were combined for purposes of meta-analysis. "
[Show abstract][Hide abstract] ABSTRACT: We conducted a systematic review and meta-analysis to determine the effect of changes to the Diagnostic and Statistical Manual (DSM)-5 on autism spectrum disorder (ASD) and explore policy implications. We identified 418 studies; 14 met inclusion criteria. Studies consistently reported decreases in ASD diagnosis (range 7.3-68.4 %) using DSM-5 criteria. There were statistically significant pooled decreases in ASD [31 % (20-44), p = 0.006] and DSM-IV-TR subgroups of Autistic disorder [22 % (16-29), p < 0.001] and pervasive developmental disorder-not otherwise specified (PDD-NOS) [70 % (55-82), p = 0.01]; however, Asperger's disorder pooled decrease was not significant [70 % (26-94), p = 0.38]. DSM-5 will likely decrease the number of individuals diagnosed with ASD, particularly the PDD-NOS subgroup. Research is needed on policies regarding services for individuals lacking diagnosis but requiring assistance.
Journal of Autism and Developmental Disorders 02/2014; 44(8). DOI:10.1007/s10803-014-2065-2 · 3.06 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: There has been a marked increase in interest in early identification of young children with and at risk for autism. This interest has reflected advances in research as well as an awareness of the potential for major changes in long-term outcome as a result of intervention. Several issues have complicated these efforts. There continue to be challenges to implementation of effective screening and diagnostic approaches in young children. Although the body of evidence-based research on treatment has increased, it remains limited. Despite these issues, important findings have emerged that may assist in fostering better approaches to screening, diagnosis, and documenting treatment impact.
International Journal of Speech-Language Pathology 12/2013; 16(1). DOI:10.3109/17549507.2013.862859 · 1.24 Impact Factor
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