Longitudinal Analysis of Children Referred for ASD Evaluation: Exploring Outcomes for Individuals Without Confirmed...

Area of Science:

• Neurodevelopmental disorders
• Pediatric psychology
• Clinical child psychology

Background:

• Diagnosing autism spectrum disorder (ASD) is challenging due to overlapping symptoms and frequent comorbidities.
• Understanding outcomes for children initially referred for ASD evaluation but not diagnosed is crucial for effective care.
• Long-term diagnostic trajectories and treatment patterns in this population are not well-defined.

Purpose of the Study:

• To explore clinical and developmental outcomes in children referred for ASD evaluation but not diagnosed with ASD.
• To describe long-term diagnostic changes and treatment patterns in this specific pediatric group.
• To compare outcomes with a matched cohort diagnosed with ASD.

Main Methods:

• Retrospective cohort study of 37 children (aged 1-13) evaluated for ASD but not diagnosed (non-ASD group).
• Included a control group of 32 children diagnosed with ASD during 2011-2017.
• Reviewed electronic medical records 2-9 years post-assessment for diagnostic changes, service use, and treatments.

Main Results:

• Both non-ASD and ASD groups showed significant impairments and high service utilization.
• Attention-Deficit/Hyperactivity Disorder (ADHD) was common in both groups; Specific Learning Disorders (SLD) were more prevalent in the non-ASD group.
• Approximately 20% of the non-ASD group received an ASD diagnosis at follow-up; most children received psychopharmacological treatment, primarily stimulants.

Conclusions:

• Children referred for ASD evaluation but not diagnosed often have substantial impairments and comorbidities like ADHD and SLD.
• This population requires ongoing, multifaceted care, highlighting the need for long-term monitoring.
• Tailored interventions and continued assessment are essential for children initially presenting with potential ASD symptoms.