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KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
State Health Facts is a KFF project that provides free, up-to-date, and easy-to-use health data for all 50 states, the District of Columbia, and the United States. It offers data on specific types of health insurance coverage, including employer-sponsored, Medicaid, Medicare, as well as people who are uninsured by demographic characteristics, including age, race/ethnicity, work status, gender, and income. There are also data on health insurance status for a state's population overall and broken down by age, gender, and income.
This analysis finds that privately insured adults who were treated for depression and/or anxiety in 2021 spent almost twice as much on annual out-of-pocket costs compared to enrollees who were not treated for a mental health diagnosis.
The survey finds nearly six in 10 people with health insurance experienced a problem using their insurance in the past year, with even larger shares reporting problems among people who are sick or who have mental health needs. It includes data for people with different types of coverage, including employer, Marketplace, Medicare and Medicaid, and also examines affordability issues and mental health access.
According to data from the Census Bureau, the uninsured rate declined in 2021, driven by an increase in public coverage, particularly Medicaid coverage, as we all as an increase in Marketplace coverage.
This issue brief examines Medicaid expansion enrollment and Medicaid spending in expansion and non-expansion states and describes the characteristics of adults covered by the Medicaid expansion.
This brief provides an overview of the most recent ACA case under review at the Supreme Court (Kennedy v. Braidwood Management) and discusses the implications of the potential rulings by the high court.
To improve the affordability of abortion services, many states have passed laws that require state-regulated plans to cover the full cost of abortion services for their enrollees. This data note documents the costs associated with abortion care in private plans. Also, KFF analyzes how out of pocket spending has been affected by state laws that require full coverage of abortion services.
This brief provides 5 key facts about the role Medicaid plays in delivering care to and financing care for people with HIV.
This data note provides an overview of the role of the Medicaid program for people with and at risk for HIV.
This Health Policy 101 chapter explores Medicaid, the primary U.S. program providing comprehensive coverage of health care and long-term services and supports to about 80 million low-income people. Originating in 1965 and expanding with the Affordable Care Act, the chapter reviews Medicaid's evolution, including 2025 changes, and its joint federal and state financing and administration. It discusses how state-level flexibility in managing Medicaid leads to variation in coverage, spending, health care delivery, and access across different states.
This Health Policy 101 chapter explores Medicare, a federal health insurance program covering more than 68 million people, established in 1965 for people age 65 or older and later expanded to cover people under age 65 with long-term disabilities. In addition to detailing Medicare eligibility, coverage, and spending, the chapter examines the increased role of private plans in providing benefits and the financing challenges posed by increasing health care costs and an aging population.
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