Nicholas J Seewald, PhD
Assistant Professor of Biostatistics and Epidemiology at the Hospital of the University of Pennsylvania
Department: Biostatistics and Epidemiology
Graduate Group Affiliations
Contact information
624 Blockley Hall
423 Guardian Drive
Philadelphia, PA 19104
423 Guardian Drive
Philadelphia, PA 19104
Education:
BS (Mathematics (with Life Science), cum laude)
University of Notre Dame, Notre Dame, IN, 2013.
MS (Biostatistics)
University of Michigan, Ann Arbor, MI, 2015.
MA (Statistics)
University of Michigan, Ann Arbor, MI, 2018.
PhD (Statistics)
University of Michigan, Ann Arbor, MI, 2021.
Permanent linkBS (Mathematics (with Life Science), cum laude)
University of Notre Dame, Notre Dame, IN, 2013.
MS (Biostatistics)
University of Michigan, Ann Arbor, MI, 2015.
MA (Statistics)
University of Michigan, Ann Arbor, MI, 2018.
PhD (Statistics)
University of Michigan, Ann Arbor, MI, 2021.
Selected Publications
Till JE, Seewald NJ, Yazdani Z, Wang Z, Ballinger D, Samberg H, Dandu S, Macia C, Yin M, Abdalla A, Prior T, Shah S, Patel T, McCoy E, Monsour M, Wills CA, Bochenek V, Serrano J, Snuderl M, Phillips RE, O’Rourke DM, Amankulor NM, Nabavizadeh A, Desai AS, Gollomp K, Binder ZA, Zhou W, Bagley SJ, Carpenter EL: Corticosteroid-dependent association between prognostic peripheral blood cell-free DNA levels and neutrophil-mediated NETosis in patients with glioblastoma. Clinical Cancer Research 31(7): 1292-1304, Apr 2025.Moin EE, Seewald NJ, Halpern SD: Use of Life Support and Outcomes Among Patients Admitted to U.S. Intensive Care Units, 2014 – 2023. JAMA Apr 2025 Notes: DOI: pg4w.
Stone EM, Jopson AD, Seewald NJ, Stuart EA, Wise E, McCourt AD, German D, McGinty EE : Effects of Texas state agency integration on mental health service use among individuals with co-occurring cognitive disabilities and mental health conditions. Community Mental Health Journal 61(1): 111-121, Jan 2025.
Seewald NJ, McGinty EE, Stuart EA: Target Trial Emulation for Evaluating Health Policy. Annals of Internal Medicine 177(11): 1530-1538, Oct 2024.
McGinty EE, Tormohlen KN, Seewald NJ, Bicket MC, McCourt AD, Rutkow L, White SA, Stuart EA: Effects of U.S. State Medical Cannabis Laws on Treatment of Chronic Noncancer Pain. Annals of Internal Medicine 176: 904-912, July 2023.
McGinty EE, Bicket MC, Seewald NJ, Stuart EA, Alexander GC, Barry CL, McCourt AD, Rutkow L: Effects of State Opioid Prescribing Laws on Use of Opioid and Other Pain Treatments Among Commercially Insured U.S. Adults. Annals of Internal Medicine 175(5): 617-627, May 2022.
McGinty EE, Seewald NJ, Bandara S, Cerdá M, Daumit GL, Eisenberg MD, Griffin BA, Igusa T, Jackson JW, Kennedy-Hendricks A, Marsteller J, Miech EJ, Purtle J, Schmid I, Schuler MS, Yuan CT, Stuart EA: Scaling Interventions to Manage Chronic Disease: Innovative Methods at the Intersection of Health Policy Research and Implementation Science. Prevention Science 25, 2022 Notes: doi: 10.1007/s11121-022-01427-8.
Seewald NJ, Kidwell KM, Nahum-Shani I, Wu T, McKay JR, Almirall D: Sample size considerations for comparing dynamic treatment regimens in a sequential multiple-assignment randomized trial with a continuous longitudinal outcome. Statistical Methods in Medical Research 29(7): 1891-1912, Jul 2020 Notes: DOI: gf85ss.
Seewald NJ, Smith SN, Lee AJ, Klasnja P, Murphy SA: Practical Considerations for Data Collection and Management in Mobile Health Micro-randomized Trials. Statistics in Biosciences 11(2): 355-370, Jul 2019 Notes: DOI: gfsvx7.
Klasnja P, Smith S, Seewald NJ, Lee A, Hall K, Luers B, Hekler EB, Murphy SA: Efficacy of Contextually Tailored Suggestions for Physical Activity: A Micro-randomized Optimization Trial of HeartSteps. Annals of Behavioral Medicine 53(6): 573-582, May 2019 Notes: DOI: hh5s.