Relationship Between Obesity and Intellectual/Developmental Disability in an Ohio Telepsychiatry Clinic: A...

Co-occurring intellectual/developmental disability (IDD) and overweight/obesity (OW/OB) is an important consideration of IDD psychiatric care. The relationship between OW/OB and comorbid diagnoses of Autism Spectrum Disorder (ASD) and/or IDD remains inadequately described in existing literature. The purpose of this study is to explore these co-occurring diagnoses. Improved understanding of associated comorbidities can guide clinicians toward interventions to minimize complications associated with OW/OB. We conducted a retrospective review of adult patients of a telepsychiatry clinic with IDD or ASD defined by DSM-5. ICD-10 diagnosis of IDD or ASD, demographics, BMI, comorbidities, and current medications were recorded. Binary logistic regression was used to estimate associations between each predictor and the outcomes overweight (body mass index (BMI) ≥ 25 kg/m²) and obesity (BMI ≥ 30 kg/m²). Prevalence of obesity in these 412 adults was 52.4% (95% CI 47.5, 57.3). There was a significant inverse relationship between IDD severity and the odds of each outcome (p < .001). 80.3% of patients were being actively treated with an antidepressant. Patients taking an antidepressant had twice the odds of obesity (adjusted OR 2.03, 95% CI 1.23, 3.41, p = .006). These findings provide a sense of urgency for prevention of OW/OB and its associated medical sequelae. Prevalence of obesity was higher in this sample compared to the general population. The inverse relationship between IDD severity and OW/OB warrants further research examining age, caregiver involvement, and access to care as potential modifiers.