Transplant Research for Equity and Access Team (TREAT)

The Transplant Research for Equity and Access Team (TREAT) is a multidisciplinary collaborative team of clinicians, biostatisticians, epidemiologists, behavioral scientists, and data scientists from the Regenstrief Institute, Indiana University, and Emory School of Medicine’s Department of Surgery. TREAT has two main areas of research interest, including one in 1) transplant health services and outcomes research and one more broad interest in 2) supporting health services research in general through our collaborative work across various institutions and organizations.

members of the TREAT team at a retreat in 2024The main goal of TREAT is to improve equity in access to each step of the transplant process. In our earlier years, much of our work focused on the Southeast, which had the lowest rate of kidney transplantation in the nation at the time our project started, but we also have national research focused on this important topic that involves various regions in the US. We strive to achieve this goal through a better collection of surveillance data on the early steps of kidney transplantation (e.g., a referral from a dialysis facility to a transplant center and the start of the transplant evaluation process at the transplant center), conducting important epidemiologic and mixed methods analyses to determine the barriers and facilitators of access to transplant, testing the efficacy and effectiveness of interventions to improve access to transplant, and disseminating and implementing these interventions across the region and nation. Our team also has an interest in revising and developing better quality metrics for both dialysis facilities and transplant centers that incentivize transplant access for these health systems, as we know that health system barriers and health policy can often be the largest levers to change.

Fundamental to our research is the ability to communicate our research findings with the scientific community (e.g., via peer-reviewed publications) as well as to patients, the community, and the public (e.g., via Twitter, or community-based meetings such as the Southeastern Kidney Transplant Coalition and Ohio River Valley Transplant Coalition meetings).   

E-STAR logo Helpful Links:
E-STAR Website
E-STAR dashboard
Transplant Referral Maps

Partner Organizations

Island Peer Review Organization logo
Regenstrief Institute
Regenstrief Institute
Emory University logo
Indiana University Health logo
Regenstrief Institute
Ohio River Valley Transplant Coalition logo

Project Team

Rachel Patzer, PhD, MPH Rachel Patzer, PhD, MPH

Rachel Patzer, PhD, MPH

President & CEO and Research Scientist, Regenstrief Institute
Leonard Betley Professor of Medicine, IU School of Medicine
Professor, IU Fairbanks School of Public Health

Katie Ross-Driscoll, PhD, MPH Katie Ross-Driscoll, PhD, MPH

Katie Ross-Driscoll, PhD, MPH

Research Scientist, Regenstrief Institute
Assistant Professor, Department of Surgery, Indiana University School of Medicine

Adam S. Wilk, PhD Adam S. Wilk, PhD

Adam S. Wilk, PhD

Associate Professor of Surgery, IU School of Medicine
Research Scientist, Regenstrief Institute

Jade Buford Jade Buford

Jade Buford, MPH

Epidemiologist, Regenstrief Institute

Kelsey Drewry, PhD, MA Kelsey Drewry, PhD, MA

Kelsey Drewry, PhD, M.A.

Assistant Professor of Surgery, IU School of Medicine
Research Scientist, William M. Tierney Center for Health Services Research, Regenstrief Institute

Mengyu Di Mengyu Di

Mengyu Di, MSPH

Data Scientist, Regenstrief Institute

Catherine Kelty, PhD Catherine Kelty, PhD

Cathy Kelty, PhD

Post-Doctoral Research Fellow

Arrey-Takor Ayuk-Arrey Arrey-Takor Ayuk-Arrey

Arrey-Takor Ayuk-Arrey, MPH

Epidemiologist, Regenstrief Institute

Yvette Tran Yvette Tran

Yvette Tran, M.S.

PhD Candidate in Health Policy & Management at Richard M. Fairbanks School of Public Health

Marciana Laster, MD Marciana Laster, MD

Marci Laster, M.D.

Physician, Riley Pediatric Nephrology & Kidney Diseases
Assistant Professor of Clinical Pediatrics, IU School of Medicine

Neha Pottanat, MD Neha Pottanat, MD

Neha D. Pottanat, M.D.

Physician, Riley Pediatric Nephrology & Kidney Diseases
Assistant Professor of Clinical Pediatrics, IU School of Medicine

Angelitta M. Britt-Spells, PhD Angelitta M. Britt-Spells, PhD

Angelitta M. Britt-Spells, PhD

Assistant Professor in Epidemiology, IU Richard M. Fairbanks School of Public Health
Affiliate Scientist, Regenstrief Institute

Jaya Purulekar Jaya Purulekar

Jaya Parulekar, M.D.

Resident Physician, Internal Medicine Pediatrics, IU School of Medicine

Josh Sadowski Josh Sadowski

Josh Sadowski

PhD Candidate in Epidemiology at Richard M. Fairbanks School of Public Health
Senior Data Analyst, IU Health

Sarah E. Huber, MD Sarah E. Huber, MD

Sarah E. Huber, M.D.

Resident Appointee, IU School of Medicine

Sih-Ting Cai, PhD Sih-Ting Cai, PhD

Sih-Ting Cai, PhD, MPA

Postdoctoral Fellow, O’Neill School of Public & Environmental Affairs, IU Bloomington

Stephen Pastan, MD Stephen Pastan, MD

Stephen Pastan, M.D.

Medical Director, Emory Kidney and Pancreas Transplant Center Nephrologist, Emory Transplant Center
Professor of Medicine, Emory University School of Medicine

Jessica Harding, PhD Jessica Harding, PhD

Jess Harding, PhD

Assistant Professor, Department of Surgery, Emory University School of Medicine
Associate Director, Emory Health Services Research Center

Megan Urbanski, PhD Megan Urbanski, PhD

Megan Urbanski, PhD, MSW

Assistant Professor, Department of Surgery, Emory University School of Medicine
Affiliate Scientist, Regenstrief Institute

Emma Blythe Emma Blythe

Emma Blythe, MPH

Epidemiologist, Emory University

Highlighted Publications

Health Disparity Metrics for Transplant Centers: Theoretical and Practical Considerations

Publication: Transplantation

DOI: 10.1097/TP.0000000000004973

Authors: Ross-Driscoll K, McElroy LM, Taber D, Patzer RE

Bridging Racial Disparities in Access to Kidney Transplantation in the United States Glass Part-Empty or Part-Full?

Publication: Journal of the American Society of Nephrology

DOI: 10.1681/ASN.0000000000000366

Authors: Patzer, RE

Characteristics of Nephrologists Participating in Medicare’s Comprehensive ESRD Care Initiative

Publication: American Journal of Kidney Diseases

DOI: 10.1053/j.ajkd.2023.09.023

Authors: Drewry K, Cummings JR, Patzer RE, Wilk AS

Optimizing the Timing of Transplant Education: The Critical Role of Dialysis Care Professionals

Publication: Clinical Journal of the American Society of Nephrology

DOI: 10.2215/CJN.0000000000000364

Authors: McDonnell JL, Urbanski MA, Drewry KM, Pastan SO, Lea JP, Arriola KJ, Escoffery C, Patzer RE, Wilk AS

Progress made toward equitable transplantation in children and young adults with kidney disease

Publication: Pediatric Nephrology

DOI: 10.1007/s00467-024-06309-5

Authors: Harford M, Laster M

Social Risk and Dialysis Facility Performance in the First Year of the ESRD Treatment Choices Model

Publication: Journal of American Medical Association

DOI: 10.1001/jama.2023.23649

Authors: Koukounas KG, Thorsness R, Patzer RE, Wilk AS, Drewry KM, Mehrotra R, Rivera-Hernandez M, Meyers DJ, Kim D, Trivedi AN

Geographic Differences in Racial Disparities in Access to Kidney Transplantation

Publication: Kidney International Reports

DOI: 10.1016/j.ekir.2023.08.002

Authors: McPherson LJ, Di M, Adams AA, Plantinga L, Pastan SO, Patzer RE

Identifying and understanding variation in population-based access to liver transplantation in the United States

Publication: American Journal of Transplantation

DOI: 10.1016/j.ajt.2023.06.002

Authors: Ross-Driscoll K, Gunasti J, Ayuk-Arrey AT, Adler JT, Axelrod D, McElroy L, Patzer RE, Lynch R

Race, Age, and Kidney Transplant Waitlisting Among Patients Receiving Incident Dialysis in the United States

Publication: Kidney Medicine

DOI: 10.1016/j.xkme.2023.100706

Authors: Buford J, Retzloff S, Wilk AS, McPherson L, Harding JL, Pastan SO, Patzer RE

The ASCENT Intervention to Improve Access and Reduce Racial Inequalities in Kidney Waitlisting: A Randomized, Effectiveness-Implementation Trial

Publication: Clinical Journal of American Society of Nephrology

DOI: 10.2215/CJN.0000000000000071

Authors: Patzer RE, Zhang R, Buford J, McPherson L, Lee YH, Urbanski M, Li D, Wilk A, Paul S, Plantinga L, Escoffery C, Pastan SO

Regenstrief Center

  • Center for Health Services Research