Marnie Bertolet, PhD

Assistant Professor, Epidemiology

Assistant Professor, Biostatistics

Assistant Professor, Clinical and Translational Science Institute


4420 Bayard Street, Suite 600, University of Pittsburgh, Pittsburgh, Pa 15260
R-znvy: zuo67@cvgg.rqh
Primary Phone: 967-193-2543

Personal Statement


Research Interests 

My research interests focus on the many uses of statistics in public health.  My devotion to statistics stems from the diversity of applications to which statistics can be applied.  I came to public health after a career in telecommunications, where I was a reliability and quality engineer performing analyses analogous to “consumer reports” for telecommunication equipment. 

My collaborative research currently focuses longitudinal, repeated measure and survival analysis methods in clinical trials and observational studies. Examples include:

  • Myocardial Infarction and Transfusion
  • Sickle Cell Disease and Cardiovascular Risk - Red Cell Exchange 
  • Trauma Induced Coagulopathy
  • Pre-Term Birth and Cardiovascular Disease in Women
  • Hemophilia Inhibitor Prevention and Eradication Trials Platform

My methodological research currently focuses Survey Sampling, Bayesian Analysis, Causal Inference, Adaptive Designs and methodology needed to support my collaborative research.  This includes the following topics

  • Inverse probability weight modeling
  • Bayesian interim monitoring of clinical trials
  • Bayesian designed clinical trials with associated simulations to identify trial characteristics
  • Classification and Regression Trees
  • Bayesian latent class models
  • Bayesian Network Meta Analysis

My research support comes from the following sources.

  • The Trans-Agency Research Consortium for Trauma Induced Coagulopathy (TACTIC, NIH/NHLBI)
  • Clinical and Translational Science Institute DBE Core (CTSI-DBE, NIH/NHLBI)
  • Myocardial Infarction and Transfusion (MINT, NIH/NHLBI)
  • Shared Antecedents to Pre-Term Birth and Cardiovascular Disease in Women (NIH/NHLBI)
  • Sickle Cell Disease and Cardiovascular Risk - Red Cell Exchange Trial (SCD-CARRE, NIH/NHLBI)

Honors and Awards 

  • Diversity and Inclusion Certificate, 2018
  • Diversity in the Curriculum Award, from the University of Pittsburgh Provost 2017
  • Certificate in Teaching Excellence from the University of Pittsburgh Graduate School of Public Health 2012
  • Student of the Year Award, American Statistical Association, Pittsburgh Chapter 2008 
  • Health Policy Student Paper Award, Joint Statistical Meetings, American Statistical Association, 2004 
  • Most Outstanding Master of Engineering Student Award  Cornell University 1995


Education & Training 

  • Carnegie Mellon University – Ph.D. Statistics, 2008 
  • Carnegie Mellon University – M.S. Statistics, 2002  
  • Cornell University, M.Eng. Operations Research and Industrial Engineering, 1995
  • Shippensburg University – B.A. Mathematics, 1993


My teaching focuses on statistical methods in epidemiology.  In addition to mentoring students and participating on student committees, I teach the following courses:


  • Fall Term: University of Pittsburgh, EPIDEM 2181 – Design of Clinical Trials 
  • Fall Term: University of Pittsburgh, EPIDEM 2215 – Teaching Practicum
  • Various Terms.  University of Pittsburgh: Intergroup Dialogue Workshop

To keep up to date with new teaching practices, I attend many of the CTL (center for teaching and learning) courses on good teaching practices.  I specifically focus on using active learning techniques, and incorporating diversity within the classroom.  I also participated in two programs to further my teaching education:


  • Carnegie Mellon University – Documentation of Teaching Effectiveness – 2008
  • Graduate School of Public Health – University of Pittsburgh  - Certificate of Teaching Excellence – 2012

I currently advise one PhD student in epidemiology and am a committee member of five other PhD students in epidemiology.  I have been primary advisor (or MPH essay advisor) for:

  • Three compeleted PhD Epidemiology students.
  • Six completed MPH Epidemiology students.
  • Two completed MS Epidemiology students

​In addition, I have served on 10 masters student committes (Epidemiology, Health Policy and Management, Biostatistics, and Clinical Research) and 11 PhD committees (Epidemiology, Biostatistics, Rehabilitation Science and Technology)



My service varies from reviewing journal articles, participating in grant reviews and serving on various local and national committees.  I see service as an excuse to expose as many people as possible to the wonderful power of statistics.  

Graduate School of Public Health and Department Service

I have participated in the following committees

  • GSPH School wide Acceptance Students Day 
  • GSPH School-wide Dean’s Day Judge
  • GSPH Faculty Diversity Committee/Diversity and Climate Committee
  • Biostatistics Department Public Health Preliminary Exam Committee
  • Epidemiology Department Preliminary Exam Committee

University Service

  • Institutional Data Safety Monitoring Boards, currently active
    • ​Effect of Treatment of Obstructive Sleep Apnea (OSA) on Diabetes Self-Management and Glycemic Control: DIabetes OSA Treatment Trial (DOTT)
    • G2DM Study: Comparison of Two Screening Strategies for Gestational Diabetes.
    • ​Participated on 5 iDSMBs that have been completed.

Departmental Service

  • Epidemiology Department Awards Committee
  • Co-Chair Epidemiologists Promoting Equity and Anti-Racism


 National Service 

  • ACCF/AHA Methodology Workshop on Guideline Development and Methodology Review
  • President of the Pittsburgh Chapter of the American Statistical Association, 2013-2014
  • Member of an Industry Sponsored Data and Safety Monitoring Board for the Placebo-Controlled Effectiveness in Pulmonary Hypertension Shunting (PENS)
  • Member of an NHLBI Observational Safety Monitoring Board, Sickle Cell Diseease - Implementation Consortium (SCD-IC)


I have participated as an ad-hoc member in the following NIH grant/contract reviews

  • Grand Opportunities Phase II ARRA Grants
  • Science Moving Towards Research Translation and Therapy 
  • Claude D. Pepper Older American Independence Centers (P30 Center Core Grant)


I reviewed journal articles for the following journals 

  • American Journal of Managed Care
  • American Journal of Pharmacy Benefits
  • American Journal of Psychiatry
  • Blood Advances
  • BMC Medical Informatics
  • BMC Nephrology
  • BMC Medical Research Methodology
  • Circulation: Cardiovascular Quality and Outcomes
  • Circulation: Cardiovascular Interventions
  • Circulation: Heart Failure
  • Circulation
  • Clinical Trials
  • Journal of Clinical Psychiatry
  • Journal of the American Geriatrics Society
  • Journal of Thoracic and Cardiovascular Surgery
  • Lifetime Data Analysis
  • Pedagogy in Health Promotion
  • Sleep
  • Statistics in Medicine
  • Stroke
  • Women's Health Issues


Selected Publications


First Author Publications, High Impact Publications and Publications between 2021-2022


Layden AJ, Bertolet M, Parks WT, Roberts JM, Adibi JJ, Catov JM. Latent class analysis of placental histopathology: a novel approach to classifying early and late preterm births. Am J Obstet Gynecol. 2022 Mar 11;. doi: 10.1016/j.ajog.2022.03.012. [Epub ahead of print] PubMed PMID: 35288092.


Catov JM, Sun B, Lewis CE, Bertolet M, Gunderson EP. Prepregnancy weight change associated with high gestational weight gain. Obesity (Silver Spring). 2022 Feb;30(2):524-534. doi: 10.1002/oby.23354. Epub 2022 Jan 26. PubMed PMID: 35080338.


Seaman CD, Bertolet M, Zhang J, Ragni MV. Quality of periprocedural care in patients with von Willebrand disease. Haemophilia. 2021 Sep;27(5):830-836. doi: 10.1111/hae.14389. Epub 2021 Aug 3. PubMed PMID: 34343372.


Bertolet M, Brooks MM, Ragni MV. The design of a Bayesian platform trial to prevent and eradicate inhibitors in patients with hemophilia. Blood Adv. 2020 Nov 10;4(21):5433-5441. doi: 10.1182/bloodadvances.2020002789. PubMed PMID: 33156923; PubMed Central PMCID: PMC7656929.


Bertolet M, Brooks MM, Carson JL. Commentary on Engen et al: Risk-based, dynamic, process-oriented monitoring strategies and their burden. Clin Trials. 2020 Feb;17(1):15-17. doi: 10.1177/1740774519881617. Epub 2019 Oct 24. PubMed PMID: 31647327.


Parmanto B, Lewis AN Jr, Graham KM, Bertolet MHDevelopment of the Telehealth Usability Questionnaire (TUQ). Int J Telerehabil. 2016 Spring;8(1):3-10. doi: 10.5195/ijt.2016.6196. eCollection 2016 Spring. PubMed PMID: 27563386; PubMed Central PMCID: PMC4985278


Bertolet M, Brooks MM, Bittner V. Tree-based identification of subgroups for time-varying covariate survival data. Stat Methods Med Res. 2016 Feb;25(1):488-501. doi: 10.1177/0962280212460442. Epub 2012 Oct 14. PubMed PMID: 23070595; PubMed Central PMCID: PMC5575747.


Bittner V, Bertolet M, Barraza Felix R, Farkouh ME, Goldberg S, Ramanathan KB, Redmon JB, Sperling L, Rutter MK. Comprehensive Cardiovascular Risk Factor Control Improves Survival: The BARI 2D Trial. J Am Coll Cardiol. 2015 Aug 18;66(7):765-773. doi: 10.1016/j.jacc.2015.06.019. PubMed PMID: 26271057; PubMed Central PMCID: PMC4550809.


Bodnar LM, Abrams B, Bertolet M, Gernand AD, Parisi SM, Himes KP, Lash TL. Validity of birth certificate-derived maternal weight data. Paediatr Perinat Epidemiol. 2014 May;28(3):203-12. doi: 10.1111/ppe.12120. Epub 2014 Mar 27. PubMed PMID: 24673550; PubMed Central PMCID: PMC4036639.


Jacobs AK, Kushner FG, Ettinger SM, Guyton RA, Anderson JL, Ohman EM, Albert NM, Antman EM, Arnett DK, Bertolet M, Bhatt DL, Brindis RG, Creager MA, DeMets DL, Dickersin K, Fonarow GC, Gibbons RJ, Halperin JL, Hochman JS, Koster MA, Normand SL, Ortiz E, Peterson ED, Roach WH Jr, Sacco RL, Smith SC Jr, Stevenson WG, Tomaselli GF, Yancy CW, Zoghbi WA, Harold JG, He Y, Mangu PB, Qaseem A, Sayre MR, Somerfield MR. ACCF/AHA clinical practice guideline methodology summit report: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol. 2013 Jan 15;61(2):213-65. doi: 10.1016/j.jacc.2012.09.025. Epub 2012 Dec 10. PubMed PMID: 23238451.


Jacobs AK, Kushner FG, Ettinger SM, Guyton RA, Anderson JL, Ohman EM, Albert NM, Antman EM, Arnett DK, Bertolet M, Bhatt DL, Brindis RG, Creager MA, DeMets DL, Dickersin K, Fonarow GC, Gibbons RJ, Halperin JL, Hochman JS, Koster MA, Normand SL, Ortiz E, Peterson ED, Roach WH Jr, Sacco RL, Smith SC Jr, Stevenson WG, Tomaselli GF, Yancy CW, Zoghbi WA. ACCF/AHA clinical practice guideline methodology summit report: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2013 Jan 15;127(2):268-310. doi: 10.1161/CIR.0b013e31827e8e5f. Epub 2012 Dec 10. PubMed PMID: 23230312.

A complete list of publications can be seen at - (both are clickable links)







Marnie  Bertolet