Ada O Youk, PhD

Associate Professor, Biostatistics

Director, MS Programs, Biostatistics

Associate Professor, Epidemiology

Associate Professor, Clinical & Translational Science


A728 Crabtree Hall, Public Health, 130 DeSoto Street, Pittsburgh, PA 15261
R-znvy: nlbhx@cvgg.rqh
Primary Phone: 967-179-0906

Personal Statement

I am an Associate Professor in Biostatistics and Director of MS Programs in Biostatistics at the University of Pittsburgh.  I am also Senior Biostatistician in the Center for Health Equity Research and Promotion (CHERP) Biostatistics and Informatics Core at the VA Pittsburgh Healthcare System. In my roles as Principal Investigator, Co-Investigator, and Lead Biostatistician, I have primary responsibility for statistical integrity, including conceptualization, design, and grant development, recruitment/data collection, monitoring, analysis, reporting, and manuscript preparation. I have expertise in regression modelling, longitudinal data analysis, health disparities, clinical research, and statistical computing. I have extensive experience with analyzing data from clinical research projects, analyzing big data from large administrative data systems as well as analyzing large, longitudinal, prospective epidemiology studies, which primarily involve time to event and mixed effects modeling. I have maintained successful research collaborations most recently with VA investigators. In my roles as Educator and Mentor, I teach courses in introductory biostatistics, applied regression analysis, scientific communication skills, mathematical methods for statistics, and mixed models as well as direct the MS Capstone in Biostatistics in Pitt Public Health. I have mentored over 100 students, fellows and early career faculty and 35% of my peer-reviewed publications are with mentees. 







Duquesne University

Pittsburgh, PA

B.A. (Cum Laude), 1988







University of Pittsburgh

Pittsburgh, PA

M.A., 1990

Applied Statistics


University of Pittsburgh

Pittsburgh, PA

Ph.D., 1996



BIOS 2011 Principles of Statistical Reasoning

BIOS 2049 Applied Regression Analysis

BIOS 2058 Scientific Communications Skills

BIOS 2081 Mathematical Methods for Statistics

BIOS 2086 Applied Mixed Models

BIOS 2099 Biostatistics Capstone

Selected Publications

  1. Vina ER, Hausmann LRM, Obrosky DS, YOUK A, Ibrahim SA, Weiner DK, Gallagher RM, Kwoh CK. Social & Psychological Factors Associated with Oral Analgesic Use in Knee Osteoarthritis Management. Osteoarthritis and Cartilage, 2019; 27(7):1018-1025. doi: 10.1016/j.joca.2019.01.010.
  1. Arya S, Varley P, YOUK A, Borrebach J, Perez S, Massarweh NN, Johanning JM, Hall DE.  Recalibration and External Validation of the Risk Analysis Index:  A Surgical Frailty Assessment. Annals of Surgery, 2019. doi: 10.1097/SLA.0000000000003276. [Epub ahead of print].
  1. *Michelotti KP, YOUK A, Payne JT, Anderson J. Outcomes of Dogs With Recurrent Idiopathic Pericardial Effusion Treated with a Three Port Right Sided Thoracoscopic Subtotal Pericardectomy.  Veterinary Surgery, 2019; 48(6):1032-1041.  doi: 10.1111/vsu.13223.
  1. Rogal S, YOUK A, Zhang H, Gellad WF, Fine MJ, Good CB, Chartier M, DiMartini A, Morgan T, Batalle R, Kraemer KL. Impact of Alcohol Use Disorder Treatment on Clinical Outcomes among Patients with Cirrhosis. Hepatology, 2020; 71(6):2080-2092.  doi: 10.1002/hep.31042.
  1. Shinall M, Arya S, YOUK AO, et al. Association of preoperative patient frailty and operative stress with postoperative mortality.  JAMA Surgery, 2019.  doi: 10.1001/jamasurg.2019.4620. [Epub ahead of print]
  1. *Tighe CA, YOUK A, Ibrahim SA, Weiner DK, Vina ER, Kwoh CK, Gallagher RM, Bramoweth AD, Hausmann LRM. Pain Catastrophizing and Arthritis Self-Efficacy as Mediators of Sleep Disturbance and Osteoarthritis Symptom Severity.  Pain Medicine, 2020; 21(3):501-510. doi: 10.1093/pm/pnz187
  1. Shah R, Borrebach JD, Hodges JC, Varley PR, Wisniewski MK, Shinall MC Jr, Arya S, Johnson J, Nelson JB, YOUK A, Massarweh NN, Johanning JM, Hall DE. Validation of the Risk Analysis Index for Evaluating Frailty in Ambulatory Patients. J Am Geriatr Soc. 2020 Apr 20;. doi: 10.1111/jgs.16453. [Epub ahead of print]
  1. Shinall MC, YOUK A, Massarweh NN, Shireman PK, Arya S, George EL, Hall DE. Association of pre-operative frailty and operative stress with mortality after elective vs emergency surgery. JAMA network open, 2020.
  1. *Frederick AN, Pardo AD, Schmiedt CW, Hinson WD, YOUK AO, Urie BK.  Outcomes for dogs with functional thyroid tumors treated by surgical excision alone. Journal of the American Veterinary Medical Association, 2020; 256(4):444-448.
  1. *Bramoweth AD, Lederer LG, YOUK AO, Germain A, Chinman MJ. Brief behavioral treatment for insomnia vs. cognitive behavioral therapy for insomnia: Results of a randomized non-inferiority clinical trial among veterans. Behavior Therapy, 2020.  In press.

* co-authored with fellow




Ada O Youk