Biostatistician
Department of Biostatistics
Contact Information
Office: Rahn 3235A
Phone: 501-526-6946
Email: DChang@uams.edu
Academic, Research and Policy Affiliations
American Statistical Association
Education
2016 – M.P.H. (Biostatistics), University of Arkansas for Medical Sciences, Little Rock, AR
2007 – M.M.S. (Health Management) Peking Union Medical College, Beijing, China
Research Interest
Clinical Trials; Claims Data Analysis; Health Policy Analysis; Survival Analysis; Epidemiologic Research; Longitudinal Data Analysis; Cost-Effectiveness Analysis
Current Research Projects
- Data Coordinating and Operations Center for the ECHO IDeA States Pediatric Clinical Trials Network (NIH; Lee J, Snowden J, and Ounpraseuth S, PI)
Recent Publications
Lancaster, B., Chang Di, Lee, J., Snowden, J., Lawrence, L., Hubberd, D.E., Phan, T.T., Hsia, D.S., Hockett, C.W., Pyles, L., Kong, A.S., Roberts, J., McCulloh, R., Darden, P., Davis; Retention, blinding, and health outcomes from a rural pediatric obesity feasibility randomized control trial. Journal of Pediatric Psychology 2026.
Erin Dawley, Jonathan Figliomeni, Russell McCulloh, Ellen Kerns, Songthip Ounpraseuth, Di Chang, Kristina Foster, Christine Hockett, Karlyn Martini, Melinda Delaney, Angel Munoz Osorio, Michael Nelson, Katie Queen, Daniel Blatt, James R Roberts; Efforts to Enhance Recruitment and Engagement of Caregivers from Medically Underserved Communities in a Randomized Controlled Trial of a Vaccine Promotion App. J. of Clinical and Translational Science, 2025 Nov 6; 9(1):e260.
Laura E. Martínez, Shelly Lensing, Di Chang, Larry I. Magpantay, Yu Guo, Ronald Mitsuyasu, Richard F. Ambinder, Joseph A. Sparano, Otoniel Martínez-Maza, Marta Epeldegui. CD20-bearing extracellular vesicles are associated with prognostic biomarkers of patients with AIDS-NHL. Scientific Reports 2025 15:25181
Lisa M. Costello, Ellen K. Kerns, Russell J. McCulloh, James R. Roberts, Daniel B. Blatt, Susanne E. Tanski, Timothy Ryan Smith, Walter Dehority, Margaret P. Huntwork, Zain Alamarat, Melinda D. Delaney, Christine W. Hockett, Ryan S. McKee, Jonathan M. Miller, Di Chang, Songthip Ounpraseuth, Sophia R. Newcomer. Hesitancy and confidence in pediatric COVID-19 vaccination among diverse caregivers of unvaccinated children. Vaccine 61 (2025).
Davis, Ann M; Darden, Paul; Lancaster, Brittany; Di Chang; Cushing, Christopher C; Janicke, David M; Lim, Crystal S; Olalde, Megan; Bullard, Sarah; McCulloh, Russell; Perry, Danika; Pyles, Lee; Staiano, Amanda E; Serrano-Gonzalez, Monica; Davis, Deborah Winders; Jelalian, Elissa. A family-based behavioral group obesity randomized control feasibility trial across a clinical trials network: a focus on contact hours. Journal of pediatric psychology2025 Mar 01; 50 (3) 280-288.
Linhda Nguyen, Thao-Ly Phan, Lauren Falini, Di Chang, Lesley Cottrell, Erin Dawley, Christine W. Hockett, Timothy VanWagoner, Paul M. Darden, Ann M. Davis. Rural Family Satisfaction with Telehealth Delivery of an Intervention for Pediatric Obesity and Associated Family Characteristics. Childhood Obesity, April 2024; 20(3) 147-154.
Zhang E, Davis Ann, Jimenez Elizabeth, Lancaster Brittany, Serrano-González Mónica, Chang Di, Lee Jeannette, Lai Jin-Shei, Pyles Lee, VanWagoner Timothy, Darden, Paul. Validation of remote anthropometric measurements in a rural randomized pediatric clinical trial in primary care settings. Scientific Reports, January 2024; 14(1):411.
Epedlegui Marta, Chang Di, Lee Jeannette, Magpantay Larry, Borok Margaret, Bukuru Aggrey, Busakhala Naftali, Godfrey Catherine, Hosseinipour Mina, Minhee Kang, Kanyama Cecilia, Langat Deborah, Mngqibisa Rosie, Mwelase Noluthando, Nyirenda Mulinda, Samaneka Wadzanai, Hoagland Brenda, Campbell Thomas, Martinez-Maza Otoniel, Krown Susan. Predictive value of serum biomarkers for response of limited-stage AIDS-associated Kaposi sarcoma to antiretroviral therapy with or without concomitant chemotherapy in resource-limited settings. JAIDS Journal of Acquired Immune Deficiency Syndromes, 94(2):p 165-173 October 1, 2023.
Atkinson Thomas, Lensing Shelly, Lee Jeannette, Chang Di, Kim Soo, Li Yuelin, Lynch Kathleen, Webb Andrew, Holland Susan, Lubetkin Erica, Goldstone Stephen, Einstein Mark, Stier Elizabeth, Wiley Dorothy, Mitsuyasu Ronald, Rosa-Cunha Isabella, Aboulafia David, Dhanireddy Shireesha, Schouten Jeffrey, Palefsky Joel. Construct validity and responsiveness of a health-related symptom index for persons either treated or monitored for anal high-grade squamous intraepithelial lesions (HSIL): Quality of Life Research, April 2023.
Laura E. Martínez, Shelly Lensing, Di Chang, Larry I. Magpantay, Ronald Mitsuyasu, Richard F. Ambinder, Joseph A. Sparano, Otoniel Martínez-Maza, Marta Epeldegui. Plasma extracellular vesicles bearing PD-L1, CD40, CD40L or TNF-RII are significantly reduced after treatment of AIDS-NHL. Scientific Reports volume 12, Article number: 9185 (2022).