Medicaid enrollment rates among individuals arrested in the state of Florida before and at the time of arrest. 
This study examined Medicaid enrollment for all individuals arrested in Florida in fiscal year (FY) 2006.  Florida Department of Law Enforcement arrest data were used to identify all individuals arrested in Florida in FY 2006.  Arrest data were matched against Medicaid claims data to determine how many individuals had been enrolled in Medicaid in the 365 days before arrest, had used Medicaid-reimbursed behavioral health services during this period, and were enrolled in Medicaid at the time of arrest.  In FY 2006, a total of 689,046 individuals were arrested in Florida.  A total of 65,097 (9.5%) of those were enrolled in Medicaid before arrest, and 37,662 (5.5%) were still enrolled at the time of arrest.  Because of the importance of Medicaid enrollment for service access after release from jail, the loss of enrollment among a large number of individuals has important policy implications.