This repository is a collection of publicly available code from my past publications. This repository is for long-term storage and future reference. In addition to GitHub, all code is stored on Zenodo at the following DOI
Zivich PN, Volfovsky A, Moody J, Aiello AE. "Assortativity and Bias in Epidemiologic Studies of Contagious
Outcomes: A Simulated Example in the Context of Vaccination". American Journal of Epidemiology.
2021;190(11):2442-2452.
Zivich PN, Cole SR, Edwards JK, Shook-Sa BE, Breskin A, and Hudgens MG. "Bridged treatment comparisons: an illustrative
application in HIV treatment". American Journal of Epidemiology 2025; In-Press.
Zivich PN. "Invited Commentary: The Seedy Side of Causal Effect Estimation with Machine Learning". Epidemiology.
2024;35(6):787-790.
Zivich PN, Breskin A. "Machine learning for causal inference: on the use of cross-fit estimators". Epidemiology.
2021;32(3):393-401.
Cole SR, Zivich PN, Shook-Sa BE, Richardson DB, Hudgens MG, Edwards JK. "Fusing Observational Studies to Reduce Multiple Biases". Submitted. 2025.
Zivich PN, Shook-Sa BE. "Estimating Marginal Structural Model Parameters for Time-Fixed, Binary Actions with
g-computation and Estimating Equations" American Journal of Epidemiology 2025;194(5):1464–1466.
Zivich PN, Lu H. "Constructing g-computation estimators: two case studies in selection bias". Submitted.
Zivich PN, Ross RK, Shook-Sa BE, Cole SR, Edwards JK. "Empirical sandwich variance estimator for iterated conditional
expectation g-computation". Statistics in Medicine 2024;43(29):5562-5572.
Cole SR, Zivich PN, Edwards JK, Ross RK, Shook-Sa BE, Price JT, Stringer JSA. "Missing Outcome Data in Epidemiologic
Studies". American Journal of Epidemiology. 2023;192(1):6-10.
Zivich PN, Naimi A. "A Primer on Neural Networks". American Journal of Epidemiology 2025; In-Press.
Zivich PN, Cole SR, Shook-Sa BE, DeMonte JB, Edwards JK. "Estimating equations for survival analysis with pooled
logistic regression". Submitted.
Filitreau LM, Zivich PN, Edwards JK, Mulholland GE, Max R, Westreich D. "Optimizing SARS-CoV-2 pooled testing strategies
through differentiated pooling for distinct groups". American Journal of Epidemiology 2023;192(2):246-256.
Zivich PN, Cole SR, Edwards JK, Mulholland GE, Shook-Sa BE, Tchetgen Tchetgen EJ. "Introducing Proximal Causal Inference
for Epidemiologists". American Journal of Epidemiology 2023;192(7):1224-1227.
Zivich PN, Ross RK. "RE: 'Using numerical methods to design simulations: revisiting the balancing intercept'".
American Journal of Epidemiology. 2022;191(10):1833-1834.
Zivich PN. "RE: 'Estimating the Effect of a Treatment When There Is Nonadherence in a Trial'".
American Journal of Epidemiology 2025;194(2):552-553.
Cole SR, Zivich PN, Edwards JK, Shook-Sa BE, Hudgens MG. "Sensitivity Analyses for Means or Proportions with Missing
Data". Epidemiology 2023;34(5):645-651.
Zivich PN, Edwards JK, Shook-Sa BE, Lofgren ET, Lessler J, Cole SR. "Synthesis estimators for positivity violations
with a continuous covariate" J R Stat Soc Ser A Stat Soc 2024;188(1):158-180.
Zivich PN, Shook-Sa BE, Cole SR, Lofgren ET, Edwards JK. "Account for Missing Data in Public Health Research
Using a Synthesis of Statistical and Mathematical Models" Submitted.
Zivich PN, Edwards JK, Lofgren ET, Cole SR, Shook-Sa BE, Lessler J. "Transportability without positivity: a synthesis
of statistical and simulation modeling". Epidemiology 2024;35(1):23-31.
Zivich PN, Cole SR, Breskin, A. "Twister Plots for Time-to-Event Studies". American Journal of Epidemiology.
2021;190(12): 2730-2731.
Zivich PN, Hudgens MG, Brookhart MA, Moody J, Weber DJ, Aiello AE. "Targeted maximum likelihood estimation of causal
effects with interference: a simulation study". Statistics in Medicine. 2022;41(23):4554-4577
