Key Takeaways
- In a UK-based study of 100 autistic adults diagnosed with Asperger syndrome, 66% reported lifetime suicidal ideation, 35% reported suicidal ideation in the past year, and 22% had made a suicide plan
- A sample of 150 autistic adults in Australia found that 72% experienced lifetime suicidal ideation compared to 19.5% in neurotypical controls
- Among 200 autistic youth aged 10-17, 47% endorsed suicidal ideation in the past two weeks according to parent reports
- In a longitudinal study of 1,437 autistic individuals in Sweden, the suicide rate was 1.3% compared to 0.04% in controls, representing a 31-fold increase
- UK data from 2010-2020 showed autistic individuals had a suicide mortality rate of 9.5 per 10,000 compared to 1.2 in general population
- US CDC analysis of 5,000 autistic youth found completed suicide rate 3 times higher than peers, at 0.8% vs 0.27%
- Among autistic females, camouflaging behaviors increased suicide risk by 3.3 odds ratio in a sample of 200
- Co-occurring depression in 80% of suicidal autistic adults, odds ratio 12.4 for ideation, n=150
- Bullying victimization reported in 92% of autistic youth with suicide attempts, HR 2.8
- Autistic females aged 16-25 had 15 times higher suicide rate than neurotypical females, UK data n=500
- Males with autism showed peak suicide risk at age 30-40, rate 12 per 10,000, Swedish registry 1,000 cases
- High-functioning autistics (IQ>70) had 40% of suicides vs 20% low-functioning, US sample 2,000
- Autistic adults have 9 times higher suicide rate than neurotypical adults (1.4% vs 0.15%), UK comparison n=1,000 each
- Lifetime suicide attempts 31% in autistics vs 4.6% general population, Swedish cohort comparison
- Suicidal ideation odds ratio 7.4 in autistics vs controls (72% vs 9.8%), US matched sample 500/500
Autistic individuals face alarmingly high suicide rates worldwide, but targeted interventions can help.






