Other Health - Research and Data from KFF

Estimating Effectiveness of Influenza and COVID-19 Vaccines: The “Test-Negative” Design

Apr 30, 2026

Issue Brief

This brief summarizes the "test-negative" methodology for estimating the effectiveness of influenza and COVID-19 vaccines, noting its strengths and potential limitations. This is the design is used in a CDC-led COVID-19 vaccine study that HHS decided not to publish.

Average Number of Deficiencies per Certified Nursing Facility by Rurality

Apr 28, 2026

State Health Facts Indicator

Average Number of Certified Nursing Facility Beds by Rurality

Apr 28, 2026

State Health Facts Indicator

Health Care’s AI Disruption, Ready or Not

Apr 28, 2026

Podcast

The AI revolution is already here — but what does it mean for patients, clinicians, and health care industry leaders? Eric Larsen, veteran health care strategist and longtime advisor to CEOs across the industry, joins host Chip Kahn for a discussion about why the U.S. health care industry is uniquely exposed to AI-driven disruption and the implications for patients, clinicians, and the health care workforce. Listen to Larsen's take on "the most consequential technology humanity’s…

MMR Vaccination Coverage Among Children

Apr 23, 2026

State Health Facts Indicator

DTaP Vaccination Coverage Among Children

Apr 23, 2026

State Health Facts Indicator

Vaccination Coverage Among Children Age 35 Months

Apr 23, 2026

State Health Facts Indicator

Why KFF Is Launching a Podcast on the Business of Health

Apr 21, 2026

Podcast

To kick off KFF’s Business of Health with Chip Kahn, KFF’s Drew Altman explains how KFF is continually evolving to research, analyze and lead on health policy. Chip and Drew discuss how KFF’s new podcast will break down the business side of health care, artificial intelligence, and what it all means for health care delivery and patients.

Podcast Trailer: KFF’s The Business of Health

Apr 15, 2026

Podcast

In this trailer, podcast host Chip Kahn, Senior Visiting Fellow, explains the focus of “The Business of Health” and why understanding the health care business matters for policy and for patients.

Policy Tracker: Youth Access to Gender Affirming Care and State Policy Restrictions

Apr 9, 2026

Tracker

This tracker provides an overview of state laws/policies restricting minor access to gender affirming care and any associated litigation by state, identifying which groups of people are impacted in addition to minors, the types of penalties providers face, the status of legal challenges, and other key information.

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