Ashkan Ertefaie, PhD
Associate Professor of Biostatistics in Biostatistics and Epidemiology
Department: Biostatistics and Epidemiology
Contact information
Division of Biostatistics
Department of Biostatistics, Epidemiology, and Informatics
University of Pennsylvania Perelman School of Medicine
423 Guardian Drive
Room 604 Blockley Hall
Philadelphia, PA 19104
Department of Biostatistics, Epidemiology, and Informatics
University of Pennsylvania Perelman School of Medicine
423 Guardian Drive
Room 604 Blockley Hall
Philadelphia, PA 19104
Office: 215-898-3311
Education:
BS (Statistics)
Isfahan University of Technology, Isfahan, Iran, 2003.
MS (Statistics)
Shahid Beheshti University, Tehran, Iran, 2006.
PhD (Statistics)
McGill University, Montreal, Canada, 2011.
Permanent linkBS (Statistics)
Isfahan University of Technology, Isfahan, Iran, 2003.
MS (Statistics)
Shahid Beheshti University, Tehran, Iran, 2006.
PhD (Statistics)
McGill University, Montreal, Canada, 2011.
Selected Publications
Brehm, Z. P., Schneider, R. B., Venuto, C. S., Smith, G., Pham, C. T., McDermott, M. P., & Ertefaie, A: Constructing a Personalized Treatment Rule for Initial Therapy in Early Parkinson's Disease. Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy 46(1): e70069, Jan 2026.Schnitzer ME, Talbot D, Liu Y, Berger D, Wang G, O'Loughlin J, Sylvestre MP, Ertefaie A.: Adaptive Sparsening and Smoothing of the Treatment Model for Longitudinal Causal Inference Using Outcome-Adaptive LASSO and Marginal Fused LASSO. Statistics in Medicine 45(0-2): e70316, Jan 2026.
Vizcarra JA, Hefter K, Lafontant DE, Duong MT, Ertefaie A, Litt B, Bassett DS, Siderowf A: Fall Frequency, Risk Factors, and Outcomes in Parkinson's Disease: A Cross-Sectional Analysis. medRxiv Sep 2025 Notes: doi: 10.1101/2025.08.05.25332959.
Yaeger, J. P., Hill, E. L., Ertefaie, A., & Fiscella, K. A.: A Population-Based Study of Rates of Invasive Bacterial Infection (IBI) and Missed IBI in Febrile Infants 8 to 90 Days of Age. Journal of Pediatrics 282: 114578, Jul 2025 Notes: doi: 10.1016/j.jpeds.2025.114578.
Vo TT, Roy S, Ye T, Erterfaie A, Nguyen TPP, Flory J, Leonard CE, Small DS, Hennessy S: Effect of exogenous testosterone on cardiovascular, cerebrovascular, and thromboembolic adverse events: Results of three complementary research designs. American Journal of Epidemiology Page: kwaf098, May 2025 Notes: doi: 10.1093/aje/kwaf098.
Pham, C. T., Baer, B. R., & Ertefaie, A: Nonparametric assessment of regimen response curve estimators. Biometrics 81(2): ujaf066, Apr 2025.
Pham, C. T., Lynch, K. G., McKay, J. R., & Ertefaie, A: Sensitivity analysis for constructing optimal regimes in the presence of treatment non-compliance and two active treatments. Electronic Journal of Statistics 19(1): 2095–2120, Apr 2025 Notes: DOI: 10.1214/25-EJS2377.
Jaman, A., Wang, G., Ertefaie, A., Bally, M., Lévesque, R., Platt, R. W., & Schnitzer, M. E. : Penalized G-estimation for effect modifier selection in a structural nested mean model for repeated outcomes. Biometrics 81(1): ujae165, Jan 2025 Notes: https://doi.org/10.1093/biomtc/ujae165.
Ertefaie, A., Duttweiler, L., Johnson, B., van der Laan, M. J.: Nonparametric estimation of a covariate-adjusted counterfactual treatment regimen response curve. Annals of Statistics 2025 Notes: doi.org/10.48550/arXiv.2309.16099.
Jones, J., Ertefaie A., and Strawderman, R. L. : Causal mediation analysis: Selection with asymptotically valid inference. Journal of the Royal Statistical Society. Series B 87(3): 678-700, Nov 2024.