Source: Martha Heberlein, Tricia Brooks, and Jocelyn Guyer, Samantha Artiga and Jessica Stephens, Kaiser Commission on Medicaid and the Uninsured, January 2011

From the abstract:
The annual 50-state survey of Medicaid and CHIP eligibility rules, enrollment and renewal procedures and cost sharing practices, conducted by the Kaiser Commission on Medicaid and the Uninsured with the Georgetown University Center for Children and Families, found that, in 2010, coverage in Medicaid and the Children’s Health Insurance Program remained strong with some improvements, particularly for low-income children. However, eligibility for their parents and other low-income adults continued to lag behind. The survey also found that states are adopting technology to modernize their programs, but still have a significant amount of work ahead as they begin to prepare for health reform.
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Executive Summary