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Research & Results

PCORI funds studies that compare healthcare options to see which will work better for patients based on outcomes important to them. We have funded more than 500 such studies and related projects to date.

74% of our research dollars fund studies comparing the effectiveness of two or more approaches to health care.
PCORI's Funding by the Numbers - Most Studied Conditions

Highlights from Our Funded Projects

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Deciding on Prostate Cancer Treatment

This study offers evidence to help choose among surgery, radiation, and active surveillance.

A multiracial nurse and a female visitor with a male patient lying in a hospital bed.

Preventing Life-Threatening Clots

To avoid deep-vein blood clots, educate hospitalized patients about prevention, PCORI-funded study suggests.

Prescirption medicine bottles standing or lying on a table with several pills.

Managing Pain, Lowering Opioid Use

PCORI-funded research: A health system’s opioid plan reduced doses among patients with chronic pain.

More about PCORI-Funded Research

Research in Action

Read a collection of short features providing a glimpse into the workings of projects we support.

PCORI in the Literature

See the latest scientific journal articles resulting from our funded research.

About Our Research

Learn about how our funded studies can provide reliable, useful information to patients, clinicians, and other healthcare stakeholders.

PCORnet: A National Research Network

Read about this initiative to harness the power of data and unique partnerships to help make health research faster, more powerful, efficient, and less costly than it is now.

Research Information and Resources

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Evaluating Our Work

Find out how we assess whether our approach to research is moving us toward our goals.

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Research Methodology

Learn more about how we're improving the way comparative effectiveness studies are designed and conducted.

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Research Spotlights

Read about the high-priority topics in our funded research portfolio.