Our experts work across the United States and around the globe, partnering with federal agencies, state and local governments, foundations, universities, professional associations, and businesses, to uncover evidence on health, human services, and international topics. In Evidence, learn about our work on current and past projects and explore our publications.

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Learn more about select client project work in health, human services, and international research.


Browse our complete online catalog of journal articles, fact sheets, issues briefs, working papers, and other publications.

Most Recent Evidence

Comprehensive Primary Care Plus (CPC+) Model: Evaluation of the Third Year (2019) Findings at a Glance

Jan 19, 2021
Deborah Peikes, Kaylyn Swankoski, Ann O’Malley, Lori Timmins, Dana Petersen, Kristin Geonnotti, Ha Tu, Pragya Singh, Arkadipta Ghosh, Stacy Dale, Rosalind Keith, Dana Jean-Baptiste, Sheila Hoag, Katie Morrison Lee, Rumin Sarwar, Victoria Peebles, Min-Young Kim, Ning Fu, Eunhae Shin, Sean Orzol, Jessica Laird, Nikkilyn Hensleigh, Genna Cohen, Asta Sorensen, Kristie Liao, Melanie Au, Rachel Machta, Janice Genevro, Arnold Chen, Mynti Hossain, Sara Pittman, Shannon Heitkamp, and Randall Brown

Care Transformation Toolkit

Jan 11, 2021
Nazihah Siddiqui, Sonya Streeter, Maggie Glos, Ethan Jacobs, Rumin Sarwar, and Candice Talkington

Geographic Variation in the Consolidation of Physicians into Health Systems, 2016–18

Jan 06, 2021
Laura Kimmey, Michael F. Furukawa, David Jones, Rachel Machta, Jing Guo, and Eugene Rich

Medicaid Expansion and Health Services Use for Adults Experiencing Homelessness in Arkansas

Jan 05, 2021
Jeral Self, Kevin Callison, Anthony Goudie, Kanna Lewis, and Joseph Thompson

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Working Paper Series

Our working paper series aims to provide timely evidence on policy and methodological research. We welcome and encourage your feedback.


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