Children require a health care system that promotes healthy development for all children while reaching out to the neediest. Barriers to care have been described as "voltage drops"-resistance points at which patients drop from the system like voltage from an electrical current. We examine the size and nature of these drops, ranging from insurance access to service quality, with respect to children. We find critical policy needs (such as expanded insurance opportunities, increased care coordination, and improved quality measurement) at all system levels. Comprehensive access to insurance and services does not guarantee that children will receive high-quality (safe and effective) care.
C h i l d h o o d i s a u n i q u e p e r i o d of rapid growth and development char-acterized by dependency, vulnerability, and, for a disproportionate number of children, poverty. The U.S. health care system, best suited to acute care for adults, struggles to accommodate vulnerable populations (such as the elderly or mentally ill). Children require a protective, preventive system-one that helps families anticipate upcoming needs, monitors problems as they arise, and coordinates services. Developing such a system is a critical health policy frontier.It is essential to understand where the current system succeeds and fails for children. John Eisenberg and Elaine Power adopted the term "voltage drops." Just as an electrical system loses voltage when current passes through resistance, the health care system loses people as they confront barriers in seven areas: access to insurance coverage, enrollment in available insurance plans, access to covered services/providers, choice of plans/providers, consistent access to primary care, access to referral services, and delivery of high-quality care. 1 For children, evidence is scant regarding one drop, the impact of plan/provider choice. The other six drops, however, clearly have policy implications that are the focus of this paper. How large are these drops for children, and how might they be reduced?