Roughly 40 million Americans have no health insurance, private or public, and the number has grown steadily over the past 25 years. Who are these children, women, and men, and why do they lack coverage for essential health care services? How does the system of insurance coverage in the U.S. operate, and where does it fail? The first of six Institute of Medicine reports that will examine in detail the consequences of having a large uninsured population, Coverage Matters: Insurance and Health Care, explores the myths and realities of who is uninsured, identifies social, economic, and policy factors that contribute to the situation, and describes the likelihood faced by members of various population groups of being uninsured. It serves as a guide to a broad range of issues related to the lack of insurance coverage in America and provides background data of use to policy makers and health services researchers.

Many Americans believe that people who lack health insurance somehow get the care they really need. Care Without Coverage examines the real consequences for adults who lack health insurance. The study presents findings in the areas of prevention and screening, cancer, chronic illness, hospital-based care, and general health status. The committee looked at the consequences of being uninsured for people suffering from cancer, diabetes, HIV infection and AIDS, heart and kidney disease, mental illness, traumatic injuries, and heart attacks. It focused on the roughly 30 million-one in seven-working-age Americans without health insurance. This group does not include the population over 65 that is covered by Medicare or the nearly 10 million children who are uninsured in this country. The main findings of the report are that working-age Americans without health insurance are more likely to receive too little medical care and receive it too late; be sicker and die sooner; and receive poorer care when they are in the hospital, even for acute situations like a motor vehicle crash.

The Social Security Administration (SSA) administers two programs that provide benefits based on disability: the Social Security Disability Insurance (SSDI) program and the Supplemental Security Income (SSI) program. This report analyzes health care utilizations as they relate to impairment severity and SSA's definition of disability. Health Care Utilization as a Proxy in Disability Determination identifies types of utilizations that might be good proxies for "listing-level" severity; that is, what represents an impairment, or combination of impairments, that are severe enough to prevent a person from doing any gainful activity, regardless of age, education, or work experience.

Hidden Cost, Value Lost, the fifth of a series of six books on the consequences of uninsurance in the United States, illustrates some of the economic and social losses to the country of maintaining so many people without health insurance. The book explores the potential economic and societal benefits that could be realized if everyone had health insurance on a continuous basis, as people over age 65 currently do with Medicare. Hidden Costs, Value Lost concludes that the estimated benefits across society in health years of life gained by providing the uninsured with the kind and amount of health services that the insured use, are likely greater than the additional social costs of doing so. The potential economic value to be gained in better health outcomes from uninterrupted coverage for all Americans is estimated to be between $65 and $130 billion each year.

America's Children is a comprehensive, easy-to-read analysis of the relationship between health insurance and access to care. The book addresses three broad questions: How is children's health care currently financed? Does insurance equal access to care? How should the nation address the health needs of this vulnerable population? America's Children explores the changing role of Medicaid under managed care; state-initiated and private sector children's insurance programs; specific effects of insurance status on the care children receive; and the impact of chronic medical conditions and special health care needs. It also examines the status of "safety net" health providers, including community health centers, children's hospitals, school-based health centers, and others and reviews the changing patterns of coverage and tax policy options to increase coverage of private-sector, employer-based health insurance. In response to growing public concerns about uninsured children, last year Congress voted to provide $24 billion over five years for new state insurance initiatives. This volume will serve as a primer for concerned federal policymakers and regulators, state agency officials, health plan decisionmakers, health care providers, children's health advocates, and researchers.

Health Insurance is a Family Matter is the third of a series of six reports on the problems of uninsurance in the United Sates and addresses the impact on the family of not having health insurance. The book demonstrates that having one or more uninsured members in a family can have adverse consequences for everyone in the household and that the financial, physical, and emotional well-being of all members of a family may be adversely affected if any family member lacks coverage. It concludes with the finding that uninsured children have worse access to and use fewer health care services than children with insurance, including important preventive services that can have beneficial long-term effects.