Chronic illness with complexities: Mental illness and substance use among veteran clinic users with diabetes

Objective: Create a taxonomy and examine the predictors of the often co-occurring conditions of substance use disorders and mental illness in veterans with diabetes. Design: Merged Veteran Health Administration and Medicare fee-for-service claims data (N = 485,893). Results: Thirty-one percent of patients with diabetes were diagnosed with either mental illness or substance use and had higher rates of diabetes-related complications. Women were more likely to have serious mental illness; African Americans and Latinos more likely to have drug and/or alcohol use. Conclusion: Prevalence of substance use disorder and mental illness differed by socio-demographics, suggesting the need for tailored diabetes management interventions.