Student Author(s)

Yat (Gary) Hung Leung

UMMS Affiliation

Center for Health Policy and Research, Commonwealth Medicine

Publication Date


Document Type



This report describes the 12-month diagnosed prevalence of behavioral health disorders (BHDs) among Massachusetts Medicare and Medicaid (MassHealth) members 55 years of age and older during calendar year 2005. Although population-based estimates of prevalence of BHDs among the elderly are available in only a few selected studies, none of them describe Massachusetts. With an expected rise in the number of elderly people with psychiatric disorders, a better understanding of the prevalence of mental illness and addictions in this population is needed to plan for services and supports.

Rights and Permissions

Clark RE, Leung Y, Lin, WC, et al. Improving Community Based Mental Health Services for Elders in Massachusetts: Twelve-Month Diagnosed Prevalence of Mental Illness, Substance Use Disorders, and Medical Comorbidity in Massachusetts Medicare and Medicaid Members Aged 55 and Over, 2005. Shrewsbury, MA: UMass Medical School, Center for Health Policy and Research; 2009 Jan.


Community Mental Health Services, Health Services for the Aged, Massachusetts, Mental Disorders, Medicare, Medicaid, Comorbidity