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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.
This brief provides information about Medicare Advantage plans in 2026, including premiums, out-of-pocket limits, supplemental benefits, and prior authorization, as well as trends over time.
This updated fact sheet provides the latest data on the global HIV/AIDS epidemic, including impact on affected and vulnerable populations, treatment and prevention efforts, and an overview of the U.S. and global responses to the epidemic.
This brief estimates the number of current Marketplace enrollees with a mental health diagnosis to understand what changes in enrollment may mean for access to services. Among the 24.3 million Marketplace enrollees in 2025, over 4.4 million individuals are estimated to have at least one mental health diagnosis on a health care claim.
Hispanic, Asian, and Black people are more likely than White people to live in households with more than four people, where not everyone will receive a free COVID-19 test from the federal government.
KFF's health tracking poll finds that beyond costs, insured adults say prior authorization is their biggest challenges when accessing care. About seven in ten (69%) insured adults say prior authorizations are burdensome, and a third (34%) choose prior authorizations as their single biggest health care burden.
This volume examines recent social media and AI policy changes; conflicting studies on COVID-19 vaccines and cancer; ACOG guidance on contraceptive misinformation; an alternative to the CDC’s MMWR; the Texas AG’s Tylenol lawsuit; and findings from a recent KFF Tracking Poll on trust in health care apps and websites that use AI.
This factsheet discusses breast cancer screening and prevention services, and reviews the scope of private and public insurance coverage, as well as access to those services for women in the US.
Our updated explainer provides an overview of comprehensive managed care, the most common way states deliver Medicaid services to enrollees.
This analysis examines Medicaid work requirements and the implementation of medical frailty exclusions for people with HIV in light of CMS's implementing regulation.
This Health Policy 101 chapter explores LGBTQ+ people’s identities and demographics, their experiences with health and health care, including the significant disparities, and the related federal and state health policy landscape.
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