This data analysis plan, based on five years of Medicaid paid claims, will concentrate on two groups: adults with physical disabilities 18 through 64 years of age; and persons 65 years of age and older. It seeks to meet three goals: To justify the proposed demonstration waiver based on projected cost savings to Medicaid for these beneficiaries; to help narrow the focus of the CHOW intervention by identifying the highest cost cases historically in Lee, Monroe, and Phillips Counties; and to identify the appropriate cost factors to target in order to assure cost neutrality.