Coverage and care consequences for families in which children have mixed eligibility for public insurance.

Abstract

Public health insurance for low-income children in the United States is primarily available through Medicaid and the Children's Health Insurance Program (CHIP). Mixed eligibility occurs when there is a mix of either "Medicaid- and CHIP-eligible" children or a mix of "eligible (for public insurance) and ineligible (for public insurance)" children in the family. We used data from the Medical Expenditure Panel Survey (MEPS) Household Component for 2001-12 to examine insurance coverage, access to care, and health care use for eligible children in families with mixed-eligible siblings compared to those in families where all siblings were eligible for one program. We found that mixed eligibility has a significant dampening effect for eligible children in families with a mix of eligible and ineligible siblings. These children were more likely to be uninsured and less likely to have a usual source of care, less likely to have any preventive dental or well-child visits during the year, and less likely to fully adhere to recommended preventive dental and well-child visits than eligible children with all-Medicaid- or all-CHIP-eligible siblings. We found no significant impact for eligible children living in Medicaid-CHIP-mixed families.