Clinical Characteristics of First-Time Autism Diagnoses in School-Aged Children: Insights and Sex Differences
Overview of New Findings on Autism Spectrum Disorder Diagnoses
A recent study has shed light on the clinical profiles of school-aged children receiving their first diagnosis of Autism Spectrum Disorder (ASD) Level 1, focusing on symptom patterns, co-occurring conditions, and differences between males and females. This research provides valuable information for clinicians, educators, and families navigating ASD diagnoses in later childhood stages.
Key Research Details and Findings
The study involved a retrospective chart review of 81 children diagnosed with ASD Level 1 at an assessment clinic. Researchers analyzed standardized assessments completed by both parents and teachers, covering social, emotional, adaptive, and behavioral functioning.
Age and Sex Differences at Diagnosis
One notable finding was that females were diagnosed later than males, with an average age of 9.7 years compared to 8.5 years for males. This delay may reflect challenges in recognizing ASD symptoms in girls.
Co-Occurring Conditions and Behavioral Concerns
More than half of the children also had attention-deficit/hyperactivity disorder (ADHD), and over one-third had an anxiety disorder. Around 25% were taking psychotropic medications at the time of diagnosis. Speech or language delays were reported in a substantial number of cases. Additionally, about half of the children experienced food selectivity and sleep difficulties, yet only 38% were receiving behavioral health therapy services.
Differences in Parent and Teacher Reports
Parents consistently reported higher levels of internalizing symptoms (such as anxiety or withdrawal) and externalizing behaviors (such as aggression) compared to teacher ratings. Parents also noted greater autism-specific social challenges. While no significant sex differences emerged in overall symptom domains from either informant, males showed more severe aggressive behaviors based on parent reports, whereas females exhibited greater difficulties in social communication and motivation according to both parents and teachers.
Cognitive and Adaptive Functioning
Overall cognitive abilities of the children were within the average range, but adaptive behavior skills—those needed for daily living—were moderately low.
Implications for Families and Professionals
This study highlights the complexity of diagnosing ASD Level 1 in school-aged children, especially given the high rates of co-occurring ADHD and anxiety, and the variability in symptom presentation between home and school settings. The later diagnosis in females and differences in reported symptoms underscore the importance of comprehensive, multi-informant assessments to avoid missed or delayed identification.
Considerations and Limitations
As a retrospective chart review, the study is limited by the data available in clinical records and may not capture the full diversity of children with ASD. The findings do not establish causation but rather describe associations and patterns observed in this clinical sample.
Families and clinicians should consider these findings as part of a broader understanding of ASD presentations and continue to seek individualized evaluations and supports.
For further details, the full study is available at PubMed.
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