Alexander W Levis, PhD
Assistant Professor of Biostatistics and Epidemiology at the Hospital of the University of Pennsylvania
Department: Biostatistics and Epidemiology
Contact information
Division of Biostatistics
Department of Biostatistics, Epidemiology, and Informatics
University of Pennsylvania Perelman School of Medicine
3600 Civic Center Blvd.
Room 5W 204
Philadelphia, PA 19104
Department of Biostatistics, Epidemiology, and Informatics
University of Pennsylvania Perelman School of Medicine
3600 Civic Center Blvd.
Room 5W 204
Philadelphia, PA 19104
Education:
BSc (Pharmacology)
McGill University, Montreal, QC, 2015.
MSc (Biostatistics)
McGill University, Montreal, QC, 2017.
MA (Biostatistics)
Harvard TH Chan School of Public Health, 2019.
PhD (Biostatistics)
Harvard TH Chan School of Public Health, 2022.
Permanent linkBSc (Pharmacology)
McGill University, Montreal, QC, 2015.
MSc (Biostatistics)
McGill University, Montreal, QC, 2017.
MA (Biostatistics)
Harvard TH Chan School of Public Health, 2019.
PhD (Biostatistics)
Harvard TH Chan School of Public Health, 2022.
Selected Publications
Loewinger G, Stensrud MJ, Nayak SM, Yaden D, Levis AW: Causal Inference in Studies with Functional Unmasking: Psychedelics and Beyond. medRxiv Jan 2026 Notes: doi: 10.64898/2025.12.05.25341713.Liu Y, Levis AW, Zhu K, Yang S, Gilbert PB, and Han L : Federated Causal Survival Analysis Under Distribution Shift. Proceedings of the 14th International Conference on Learning Representations (ICLR). 2026.
Benz, L., Levis, A.W., Haneuse, S: Comparing causal inference methods for point expo-sures with missing confounders: a simulation study. BMC Medical Research Methodology 25(1): 222, Sep 2025 Notes: doi: 10.1186/s12874-025-02675-2.
Levis AW, Bonvini M, Zeng Z, Keele L, Kennedy EH: Covariate-assisted bounds on causal effects with instrumental variables. Journal of the Royal Statistical Society 87(5): 1508-1527, May 2025.
Levis, A.W., Kennedy, E.H.: Discussion of “Causal and counterfactual views of missing data mod-els” by Razieh Nabi, Rohit Bhattacharya, Ilya Shpitser, and James M. Robins. Statistica Sinica 2025 Notes: arXiv:2506.13025.
Levis AW, Mukherjee R, Wang R, Fischer H, Haneuse S: Double Sampling for Informatively Missing Data in Electronic Health Record-Based Comparative Effectiveness Research. Statistics in Medicine 43(30): 6086-6098, Dec 2024.
Levis B, Bhandari PM, Neupane D, Fan S, Sun Y, He C, Wu Y, Krishnan A, Negeri Z, Imran M, Rice DB, Riehm KE, Azar M, Levis AW, Boruff J, Cuijpers P, Gilbody S, Ioannidis JPA, Kloda LA, Patten SB, Ziegelstein RC, Harel D, Takwoingi Y, Markham S, Alamri SH, Amtmann D, Arroll B, Ayalon L, Baradaran HR, Beraldi A, Bernstein CN, Bhana A, Bombardier CH, Buji RI, Butterworth P, Carter G, Chagas MH, Chan JCN, Chan LF, Chibanda D, Clover K, Conway A, Conwell Y, Daray FM, de Man-van Ginkel JM, Fann JR, Fischer FH, Field S, Fisher JRW, Fung DSS, Gelaye B, Gholizadeh L, Goodyear-Smith F, Green EP, Greeno CG, Hall BJ, Hantsoo L, Härter M, Hides L, Hobfoll SE, Honikman S, Hyphantis T, Inagaki M, Iglesias-Gonzalez M, Jeon HJ, Jetté N, Khamseh ME, Kiely KM, Kohrt BA, Kwan Y, Lara MA, Levin-Aspenson HF, Liu SI, Lotrakul M, Loureiro SR, Löwe B, Luitel NP, Lund C, Marrie RA, Marsh L, Marx BP, McGuire A, Mohd Sidik S, Munhoz TN, Muramatsu K, Nakku JEM, Navarrete L, Osório FL, Pence BW, Persoons P, Petersen I, Picardi A, Pugh SL, Quinn TJ, Rancans E, Rathod SD, Reuter K, Rooney AG, Santos IS, Schram MT, Shaaban J, Shinn EH, Sidebottom A, Simning A, Spangenberg L, Stafford L, Sung SC, Suzuki K, Tan PLL, Taylor-Rowan M, Tran TD, Turner A, van der Feltz-Cornelis CM, van Heyningen T, Vöhringer PA, Wagner LI, Wang JL, Watson D, White J, Whooley MA, Winkley K, Wynter K, Yamada M, Zeng QZ, Zhang Y, Thombs BD, Benedetti A; Depression Screening Data (DEPRESSD) PHQ Group: Data-Driven Cutoff Selection for the Patient Health Questionnaire-9 Depression Screening Tool. JAMA Network Open 7(11): e2429630, Nov 2024.
Loewinger G, Levis AW, Pereira F: Nonparametric causal inference for optogenetics: sequential excursion effects for dynamic regimes. ArXiv [Preprint] arXiv: 2405.18597v2, Oct 2024.
Alexander W. Levis, Rajarshi Mukherjee, Rui Wang, Sebastien Haneuse: Robust causal inference for point exposures with missing confounders. Canadian Journal of Statistics Page: e11832, Sept 2024 Notes: doi.org/10.1002/cjs.11832.
Takatsu K, Levis AW, Kennedy E, Kelz R, Keele L: Doubly robust machine learning-based estimation methods for instrumental variables with an application to surgical care for cholecystitis Journal of the Royal Statistical Society 188(4): 1003-1028, Sep 2024.