Autism & Developmental

Factors mediating pre-existing autism diagnosis and later suicidal thoughts and behaviors: A follow-up cohort study.

Chang et al. (2024) · Autism : the international journal of research and practice 2024
★ The Verdict

Bullying and unusually high cognitive flexibility help explain why autistic youth later think about suicide.

✓ Read this if BCBAs working with autistic teens and young adults in schools or clinics.
✗ Skip if Practitioners serving only autistic adults or non-verbal children under ten.

01Research in Context

01

What this study did

Chang et al. (2024) followed autistic and neurotypical teens and young adults over time. They asked who later had suicidal thoughts and what factors explained the link to autism.

The team measured bullying, social support, and cognitive flexibility. They used statistics to see which factors carried the risk from autism to later suicidal thinking.

02

What they found

Autistic participants reported more suicidal thoughts than their typical peers. Bullying victimization partly explained this jump in risk.

Surprise result: higher cognitive flexibility also carried part of the risk. Being better at shifting thoughts or plans, not worse, was tied to later suicidal ideas.

03

How this fits with other research

The finding lines up with earlier work. van Schalkwyk et al. (2018) already showed that about half of high-functioning autistic teens say they are bullied. Cappadocia et al. (2012) linked that bullying to having few friends and more mental-health problems.

Arwert et al. (2020) looked at adults and found depression, not other traits, drove suicidality. Jung-Chi now shows the youth path is different: bullying and flexibility matter more than mood alone.

Heald et al. (2020) seems to disagree. In adult women with autistic traits, poor imagination (low flexibility) raised suicide risk. The new youth study finds high flexibility raises risk. The gap likely comes from age and sex: teens with strong flexibility may see social gaps more clearly, while stuck-thinking hurts adult women.

04

Why it matters

You now have two clear youth targets: reduce bullying and teach flexible coping, not just flexibility alone. Start with class-wide bullying prevention and peer-mentor programs. Pair that with ACT or similar training that links flexible thinking to values-based action so insight does not turn into rumination. Add direct questions about bullying and suicidal thoughts to every teen assessment; parents often miss it.

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Add two quick bullying questions to your teen intake form and review answers with the client in private.

02At a glance

Intervention
not applicable
Design
other
Sample size
250
Population
autism spectrum disorder, neurotypical
Finding
not reported

03Original abstract

Autistic people are more likely to experience suicidal thoughts and behaviors. The underlying relationships between potential risk factors and suicidal thoughts and behaviors in autistic individuals remain unclear. To understand this, we investigated whether specific factors in childhood/youth explain the effects of pre-existing autism spectrum disorder (ASD) diagnoses on later suicidal thoughts and behaviors in adolescence/adulthood. We assessed internalizing and externalizing problems, bullying experiences, and executive functions (including cognitive flexibility, sustained attention, and spatial working memory) at an average baseline age of 13.4 years and suicidal thoughts and behaviors at an average follow-up age of 19.2 years among 129 autistic and 121 typically developing (TD) individuals. During the follow-up period in adolescence/adulthood, autistic individuals were more likely to report suicidal thoughts than TD individuals. Being bullied partially accounted for the relationship between a pre-existing ASD diagnosis and later-reported higher suicidal thoughts. Contrary to our hypothesis, higher (instead of lower) cognitive flexibility in some autistic young people appeared to partially explain their higher rates of suicidal thoughts compared with typically developing young people. The findings imply that school bullying prevention and tailored intervention programs for autistic people, especially those with higher cognitive flexibility, are warranted to reduce their risks of experiencing suicidal thoughts.

Autism : the international journal of research and practice, 2024 · doi:10.1177/13623613231223626