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Autism Prevalence in the Medicaid Program and Healthcare Utilization and Costs Among Adult Enrollees Diagnosed with Autism

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As the number of individuals diagnosed with autism increases, there is an increase in demand to provide support throughout their lifespan. This study aimed to: (1) estimate trends in the prevalence of autism diagnoses and medical services use in adults with autism diagnoses; (2) assess predictors of healthcare utilization and costs among adults with autism diagnoses enrolled in Medicaid. A retrospective analysis of 2006–2008 Medicaid claims for 39 states was conducted. There was a 38% increase in the prevalence of autism diagnoses from 2006 to 2008. Total expenditures and outpatient and ER visits varied significantly by demographic variables.

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This study was part of a larger project funded by the Organization for Autism Research and a University of Mississippi Graduate School Council Research Grant. The study was presented as a poster at the 2014 Annual Research Meeting (ARM), AcademyHealth, June 8–10, San Diego, CA.

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Correspondence to Krutika Jariwala-Parikh.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.

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Jariwala-Parikh, K., Barnard, M., Holmes, E.R. et al. Autism Prevalence in the Medicaid Program and Healthcare Utilization and Costs Among Adult Enrollees Diagnosed with Autism. Adm Policy Ment Health 46, 768–776 (2019).

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