Rachel G Miller, PhD

Research Assistant Professor, Epidemiology


130 N. Bellefield Avenue, Suite 339, Pittsburgh, PA 15213
R-znvy: zvyyree@rqp.cvgg.rqh
Primary Phone: 967-838-7873

Personal Statement

My research focuses on the epidemiology and pathogenesis of complication development in type 1 diabetes through applying various analytic methods which are under-used in epidemiology, such as regression trees, accelerated failure time models, and joint modeling, to address limitations of more traditional statistical approaches. I am particularly interested in utilizing longitudinal data to investigate factors that may contribute to the earlier identification of risk for cardiovascular and renal complications. Most of this work has focused on data from the Epidemiology of Diabetes Complications Study (EDC), a longitudinal prospective cohort study of type 1 diabetes, which has been followed for over 30 years. Currently, I am the PI of an American Diabetes Association Junior Faculty Development Award project entitled Epigenetics of Glycemic Exposure and Complication Development in Type 1 Diabetes, the goal of which is to examine whether differential DNA methylation improves prediction of type 1 diabetes complications over what is already predicted by long-term blood sugar control. Additionally, I have extensive experience planning and executing statistical analyses of studies in lifestyle modification research. I have served as a statistician on several community-based translational/effectiveness trials, including Physical Activity and Sedentary Behavior Change; Impact on Lifestyle Intervention Effects for Diabetes Translation and Diabetes Prevention Translation Project - The healthy LIFESTYLE Program.


2016 | University of Pittsburgh, Pittsburgh, PA | PhD Epidemiology

2005 | University of Pittsburgh, Pittsburgh, PA | MS Biostatistics

2003 | University of Pittsburgh, Pittsburgh, PA | BS Microbiology

Active Support

Principal Investigator


Epigenetics of Glycemic Exposure and Complication Development in Type 1 Diabetes. American Diabetes Association 1-19-JDF-109, 2019-2022


Autoantibody Status of Long-Duration Type 1 Diabetes and Its Association with Residual Beta Cell Function. University of Pittsburgh Central Research Development Fund, 2018-2022




Epidemiology of Diabetes Complications: Phase II (R01).  NIDDK DK034818-35A1, 2019-2021 (PI: Costacou)



Selected Publications

My Bibliography


Miller RG, Orchard TJ, Onengut-Gumuscu S, Chen W-M, Rich SS, Costacou T. Heterogeneous Long-Term Trajectories of Glycaemic Control in Type 1 Diabetes. Diabetic Medicine 2021. Online ahead of print.




Miller RG, Orchard TJ, Costacou T. Risk Factors Differ by First Manifestation of Cardiovascular Disease in Type 1 Diabetes: The Pittsburgh Epidemiology of Diabetes Complications (EDC) Study. Diabetes Research and Clinical Practice. 2020, Epub ahead of print.




Miller RG, Yu L, Becker DJ, Orchard TJ, Costacou T. Older Age of Childhood Type 1 Diabetes Onset is Associated with Islet Autoantibody Positivity Over 30 Years Later: The Pittsburgh Epidemiology of Diabetes Complications Study. Diabetic Medicine. 2020, Epub ahead of print.




Miller RG, Orchard TJ. Understanding Metabolic Memory: A Tale of Two Studies. Diabetes. 2020; 69(3): 291-299.




Miller RG, Costacou T, Orchard TJ. Risk factor modeling for cardiovascular disease in type 1 diabetes in the Pittsburgh Epidemiology of Diabetes Complications (EDC) study: A comparison to the Diabetes Control and Complications Trial/ Epidemiology of Diabetes Interventions and Complications study. Diabetes. 2019; 68(20): 409-419.




Miller RG, Anderson SJ, Costacou T, Sekikawa A, Orchard TJ.  Hemoglobin A1c and Cardiovascular Disease Incidence in Type 1 Diabetes: An Application Of Joint Modeling Of Longitudinal And Time-To-Event Data In The Pittsburgh Epidemiology Of Diabetes Complications (EDC) Study. American Journal of Epidemiology. 2018 Jul; 187(7):1520-1529.




Ray EC, Miller RG, Demko JE, Costacou T, Kinlough CL, Demko CL, Unruh ML, Orchard TJ, Kleyman TR. Urinary Plasmin(ogen) as a Prognostic Factor for Hypertension. Kidney Int Rep. 2018 Jun; 3(6): 1434-1442.




Miller RG, Mahajan HD, Costacou T, Sekikawa A, Anderson SJ, Orchard TJ. A Contemporary Estimate of Total Mortality and Cardiovascular Disease Risk in Young Adults With Type 1 Diabetes: The Pittsburgh Epidemiology of Diabetes Complications Study. Diabetes Care. 2016 Dec;39(12):2296-2303.




Miller RG, Anderson SJ, Costacou T, Sekikawa A, Orchard TJ. Risk stratification for 25-year cardiovascular disease incidence in type 1 diabetes: Tree-structured survival analysis of the Pittsburgh Epidemiology of Diabetes Complications study. Diab Vasc Dis Res. 2016 Jul;13(4):250-9.




Costacou T, Levy AP, Miller RG, Snell-Bergeon J, Asleh R, Farbstein D, Fickley CE, Pambianco G, de la Vega R, Evans RW, Orchard TJ. Effect of vitamin E supplementation on HDL function by haptoglobin genotype in type 1 diabetes: results from the HapE randomized crossover pilot trial. Acta Diabetologica. 2016; 53(2): 243-50.




Kramer MK, Molenaar DM, Arena VC, Venditti EM, Meehan RJ, Miller RG, Vanderwood KK, Eaglehouse Y, Kriska AM. Improving employee health: evaluation of a worksite lifestyle change program to decrease risk factors for diabetes and cardiovascular disease. J Occup Environ Med. 2015 Mar;57(3):284-9.




Miller RG, Secrest AM, Ellis D, Becker DJ, Orchard TJ. Changing impact of modifiable risk factors on the incidence of major outcomes of type 1 diabetes: The Pittsburgh Epidemiology of Diabetes Complications Study. Diabetes Care. 2013 Dec;36(12):3999-4006.




Miller RG, Secrest AM, Sharma RK, Songer TJ, Orchard TJ. Improvements in the life expectancy of type 1 diabetes: the Pittsburgh Epidemiology of Diabetes Complications study cohort. Diabetes. 2012 Nov;61(11):2987-92.




Ix JH, Miller RG, Criqui MH, Orchard TJ. Test characteristics of the ankle-brachial index and ankle-brachial difference for medial arterial calcification on X-ray in type 1 diabetes. Journal of Vascular Surgery. 2012 Sep; 56(3): 721-727.



Rachel G Miller