The implementation of Medicaid managed care for pregnant women in Ohio: a case study.

More than one-third of all births in the United States are financed by Medicaid. In 2001, more than 50% of all Medicaid beneficiaries were enrolled in a managed care plan, and participation by these plans in Medicaid is expected to grow. The care of pregnant women and their infants can be significantly affected by managed care practice. However, equally important are the state regulations that influence Medicaid managed care markets.