Assessment & Research

Differential diagnosis of Hispanic children referred for autism spectrum disorders: complex issues.

Overton et al. (2007) · Journal of autism and developmental disorders 2007
★ The Verdict

Use a step-by-step decision-tree when assessing Hispanic children for autism; half may not have ASD but still need other supports.

✓ Read this if BCBAs doing autism evaluations in bilingual or Hispanic-serving clinics.
✗ Skip if BCBAs who only serve school-age youth with confirmed ASD.

01Research in Context

01

What this study did

Overton et al. (2007) looked at a small group of Hispanic children sent to an autism clinic. They tracked why some kids got an ASD label and others did not.

The team wrote down every extra diagnosis each child had. Then they built a simple decision-tree to help clinicians sort language delays from true autism.

02

What they found

Half of the Hispanic children did not meet ASD criteria after full testing. Most of those kids still had other problems like language disorder or ADHD.

The decision-tree cut confusion by forcing clinicians to check language, culture, and development in set order.

03

How this fits with other research

Begeer et al. (2009) showed doctors refer minority kids for autism checks less often. Terry’s tree helps catch the kids who do get referred but sit on the bubble.

Brynskov et al. (2017) found Venezuelan families wait three years from first worry to final diagnosis. Using Terry’s tree at the first visit could shave months off that wait.

Nijs et al. (2016) showed Latino children get fewer services even when autism severity matches White peers. Terry’s clearer diagnosis step may help families qualify for those services sooner.

04

Why it matters

If you evaluate Hispanic preschoolers, keep Terry’s decision-tree on your clipboard. Expect high rates of language delay and mixed diagnoses. Work through each branch before you decide. A firm, early call helps families skip the long delays shown in later studies and lands kids in therapy faster.

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Add a language-first branch to your assessment flowsheet: rule out hearing loss, test both languages, then move to social communication items.

02At a glance

Intervention
not applicable
Design
case series
Sample size
28
Population
autism spectrum disorder
Finding
not reported

03Original abstract

This study examines the decision-making process used for differential diagnosis of a sample of Hispanic children referred for autism spectrum disorders (ASDs). Of the sample of 28 children, 18 were diagnosed with ASDs. Of the 10 children who were not diagnosed with ASDs, 80% were found to have multiple diagnostic labels or comorbidities. Mann-Whitney U analyses determined the differences between the children with the most severe social impairment, children with less severe social impairment and the non-autistic children on several domains commonly used to assess ASDs. These analyses indicated significant differences in some characteristics of the children in the sample. Based on these results, a decision-tree for the diagnosis of children with and without ASDs with comorbid disorders was developed.

Journal of autism and developmental disorders, 2007 · doi:10.1007/s10803-006-0349-x