期刊
JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
卷 58, 期 10, 页码 940-952出版社
WILEY
DOI: 10.1111/jir.12121
关键词
ADI-R; ADOS; autism; autism spectrum disorder; comorbidity; fragile X syndrome
BackgroundPrior research suggests that 60-74% of males and 16-45% of females with fragile X syndrome (FXS) meet criteria for autism spectrum disorder (ASD) in research settings. However, relatively little is known about the rates of clinical diagnoses in FXS and whether such diagnoses are consistent with those performed in a research setting using gold standard diagnostic tools. MethodThis study explored whether boys and girls with FXS met criteria for ASD in a research setting using the Autism Diagnostic Observation Schedule (ADOS) and the Autism Diagnostic Interview-Revised (ADI-R), and then compared these data with the frequency of parent-reported clinical diagnoses. We also examined child and family characteristics as potential diagnostic predictors across settings. Participants included 35 females and 51 males with FXS (mean age: 10 years), who were from Eastern and Midwestern regions of the USA. ResultsAbout half of the children met criteria for ASD on either the ADOS or ADI-R, with ASD occurring three times more frequently in males than females (approximate to 75% vs. approximate to 25%). In contrast, approximate to 25% of participants of both genders had received a clinical diagnosis of ASD. While cognitive and language skills predicted diagnostic outcome on the ADOS and ADI-R, these skills did not predict clinical diagnoses. Executive functions predicted clinical diagnoses, but not diagnoses per the ADOS or ADI-R. ConclusionsASD in FXS may be under-diagnosed in clinical/educational settings, which raises questions regarding access to ASD-related services.
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