Health insurance plans are separated into different metal tiers based on the proportion of health care costs the insurance plan is expected to cover. Catastrophic and Bronze plans cover the smallest proportion, having the highest deductibles, copays and coinsurance. On the other end of the spectrum, Platinum plans offer the greatest amount coverage, expected to cover 90% of all costs.
On the whole, uninsured Americans have worse health outcomes; cancers and other deadly diseases, for example, are more likely to be diagnosed at later stages in uninsured people. Uninsured pregnant women use fewer prenatal services and uninsured children and adults are less likely than their insured counterparts to have a primary care doctor whom they trust.
Health insurance in the United States is any program that helps pay for medical expenses, whether through privately purchased insurance, social insurance, or a social welfare program funded by the government. Synonyms for this usage include "health coverage", "health care coverage", and "health benefits". In a more technical sense, the term "health insurance" is used to describe any form of insurance providing protection against the costs of medical services. This usage includes private insurance and social insurance programs such as Medicare, which pools resources and spreads the financial risk associated with major medical expenses across the entire population to protect everyone, as well as social welfare programs like Medicaid and the Children's Health Insurance Program, which both provide assistance to people who cannot afford health coverage.