ADHD, autism far more common in youth-onset T2D

Clinical takeaway: When managing type 2 diabetes in young patients, watch for coexisting ADHD or autism and adapt communication and follow-up to address them effectively. 

Type 2 diabetes is arriving earlier in life, and the patients who develop it when they are young often pay the steepest price. Longer exposure to the disease, more complications, and a diagnosis that lands amid school, first jobs, and everything else early adulthood demands. These are also patients health systems struggle to hold onto, because of coverage and engagement issues as well as stigma that compounds the daily work of managing diabetes. 

Neurodivergent patients face barriers of their own, the study's authors note: busy clinical environments, communication built for a standard patient, self-management routines that aren't flexible. If the two groups overlap heavily, diabetes care designed for the average patient can fail. A large cross-sectional analysis of US patient records asked how much neurodivergence and type 2 diabetes overlap, with the answer pointing toward the youngest patients. 

Among patients diagnosed with type 2 diabetes before age 20, 14.4% had ADHD, against 6.9% of matched peers without diabetes. Autism showed a wider relative gap: 5.7% against 1.8%. Both gaps narrowed with later diagnosis but never closed. Neurodivergence itself grew rare in both groups past age 40. The relative autism contrast peaked at diagnosis ages 20 to 29, where prevalence ran four times higher with diabetes than without. Dyslexia and dyspraxia pointed the same direction. Patients with diabetes carried dyslexia at roughly twice the rate of matched peers across the age range, and dyspraxia ran higher without a consistent age pattern. 

Researchers drew on TriNetX, a network of de-identified electronic health records from 69 US healthcare organizations, to identify 4.2 million people newly diagnosed with type 2 diabetes between March 2006 and March 2026. Each was propensity-matched within 10-year age bands to peers without diabetes on age, birth year, sex, race, and ethnicity, yielding 3.4 million matched pairs under age 80. 

Why the conditions cluster went unmeasured here. The authors offer some potential theories: neurodivergent patients may be less physically active, sleep worse, use more medication, live with more mental health conditions, and face higher barriers to reaching care. They also note the pattern may partly reflect detection. Neurodivergent patients see clinicians more often, giving diabetes more chances to be caught early. The association may even begin before birth. Earlier work ties maternal diabetes to both neurodevelopmental outcomes and later cardiometabolic risk in children. 

"Our findings by no means suggest that most people with a neurodivergent condition will go on to develop type 2 diabetes," the authors concluded. "However, the higher prevalence of neurodiversity among people diagnosed with T2D earlier in life should be considered when planning services for people with early-onset T2D. Taking neurodiversity into account could help reduce potential barriers to accessing and engaging with healthcare." 

Source: Goldney J, et al. (2026 Sep 27) 62nd EASD Annual Meeting, abstract 268. Age at diagnosis of type 2 diabetes and neurodiversity: a cross-sectional analysis