Papers

Below is a list of papers I have worked on. These span applied papers, tutorial papers, methodological papers, and software papers. You can also check out my Google Scholar page. Feel free to reach out if you need help accessing any of these papers.

  • Perry, L. A., Peiris, S., Greifer, N., Karamesinis, A., Rong, L. Q., Gaudino, M., Smith, J. A., Silvers, A., Bennetts, J., Segal, R., Larobina, M., Bellomo, R., & Miles, L. F. (2026). Associations Between Pulmonary Artery Catheter Use and Outcomes After Cardiac Surgery: An Entropy-Balanced Cohort Study. Anesthesia & Analgesia.
    10.1213/ANE.0000000000008198
  • Stallworthy, I. C., DeJoseph, M. L., Padrutt, E. R., Greifer, N., & Berry, D. (2026). Investigating causal questions about temporal and cumulative developmental effects: An introduction to the devMSMs package in R. Child Development, 97(2), 331–351.
    10.1093/chidev/aacaf024
  • Greifer, N., Worthington, S., Iacus, S., & King, G. (2025). clarify: Simulation-Based Inference for Regression Models. The R Journal, 16(2), 154–174.
    10.32614/RJ-2024-015
  • Dickens, E., Greifer, N., Robb, K., Marcoux, A., Creighton, J., Allegar, C., & de Jong, J. (2025). The Effects of a Place-Based Intervention on Resident Reporting of Crime and Service Needs: A Frontier Matching Approach. Justice Quarterly, 43(1), 264–303.
    10.1080/07418825.2025.2557333
  • Fletcher, C. M., Hinton, J. V., Perry, L. A., Greifer, N., Williams-Spence, J., Segal, R., Smith, J. A., Coulson, T. G., Reid, C. M., & Bellomo, R. (2025). Adjunctive Fresh Frozen Plasma Versus Adjunctive Cryoprecipitate in Cardiac Surgery Patients Receiving Platelets for Perioperative Bleeding. Journal of Cardiothoracic and Vascular Anesthesia, 39(3), 584–593.
    10.1053/j.jvca.2024.12.034
  • Perry, L. A., Brooks, G. G., Greifer, N., Hua, J., Phillips, B., Silvers, A., Yang, B. O., Tsigaras, Z., Borann, B., Hui, V., & Bellomo, R. (2025). The influence of sex on early postoperative opioid administration after cardiac surgery. Australian Critical Care, 38(5), 101260.
    10.1016/j.aucc.2025.101260
  • Zivich, P. N., Cole, S. R., Greifer, N., Montoya, L. M., Kosorok, M. R., & Edwards, J. K. (2025). Confidence Regions for Multiple Outcomes, Effect Modifiers, and Other Multiple Comparisons. arXiv.
    10.48550/arXiv.2510.07076
  • Arel-Bundock, V., Greifer, N., & Heiss, A. (2024). How to Interpret Statistical Models Using marginaleffects for R and Python. Journal of Statistical Software, 111(9).
    10.18637/jss.v111.i09
  • Chattopadhyay, A., Greifer, N., & Zubizarreta, J. R. (2024). Lmw: Linear Model Weights for Causal Inference. Observational Studies, 10(2), 33–62.
    10.1353/obs.2024.a946582
  • Hinton, J. V., Fletcher, C. M., Perry, L. A., Greifer, N., Hinton, J. N., Williams-Spence, J., Segal, R., Smith, J. A., Reid, C. M., Weinberg, L., & Bellomo, R. (2024). Platelet versus fresh frozen plasma transfusion for coagulopathy in cardiac surgery patients. PLOS ONE, 19(1), e0296726.
    10.1371/journal.pone.0296726
  • Kaiser, F., Oberwittler, D., Thielmann, I., Kleinke, K., & Greifer, N. (2024). When does criminal victimization undermine generalized trust? A weighted panel analysis of the effects of crime type, frequency, and variety. Social Science Research, 124, 103086.
    10.1016/j.ssresearch.2024.103086
  • Wan, S., Lauermann, F., Greifer, N., Jiang, S., Bailey, D. H., & Eccles, J. S. (2024). The role of comparative processes in shaping the effects of between-class ability grouping on students’ math ability self-concept. Journal of Educational Psychology, 116(8), 1421–1436.
    10.1037/edu0000888
  • Carroll, G., Solomon, K. T., Heil, J., Saloner, B., Stuart, E. A., Patel, E. Y., Greifer, N., Salzman, M., Murphy, E., Baston, K., & Haroz, R. (2023). Impact of Administering Buprenorphine to Overdose Survivors Using Emergency Medical Services. Annals of Emergency Medicine, 81(2), 165–175.
    10.1016/j.annemergmed.2022.07.006
  • Fletcher, C. M., Hinton, J. V., Xing, Z., Perry, L. A., Greifer, N., Karamesinis, A., Shi, J., Penny-Dimri, J. C., Ramson, D., Liu, Z., Williams-Spence, J., Segal, R., Smith, J. A., Coulson, T. G., & Bellomo, R. (2023). Platelet Transfusion in Cardiac Surgery: An Entropy-Balanced, Weighted, Multicenter Analysis. Anesthesia & Analgesia, 138(3), 542–551.
    10.1213/ANE.0000000000006624
  • Griffin, B. A., Schuler, M. S., Cefalu, M., Ayer, L., Godley, M., Greifer, N., Coffman, D. L., & McCaffrey, D. F. (2023). A Tutorial for Propensity Score Weighting for Moderation Analysis With Categorical Variables: An Application Examining Smoking Disparities Among Sexual Minority Adults. Medical Care, 61(12), 836–845.
    10.1097/MLR.0000000000001922
  • Huling, J. D., Greifer, N., & Chen, G. (2023). Independence Weights for Causal Inference with Continuous Treatments. Journal of the American Statistical Association, 119(546), 1657–1670.
    10.1080/01621459.2023.2213485
  • Nguyen, T. Q., Ogburn, E. L., Schmid, I., Sarker, E. B., Greifer, N., Koning, I. M., & Stuart, E. A. (2023). Causal mediation analysis: From simple to more robust strategies for estimation of marginal natural (in)direct effects. Statistics Surveys, 17(none).
    10.1214/22-SS140
  • Simões, T. R., Greifer, N., Barido‐Sottani, J., & Pierce, S. E. (2023). EvoPhylo: An R package for pre‐ and postprocessing of morphological data from relaxed clock Bayesian phylogenetics. Methods in Ecology and Evolution, 14(8), 1981–1993.
    10.1111/2041-210X.14128
  • Strasser, Z. H., Greifer, N., Hadavand, A., Murphy, S. N., & Estiri, H. (2022). Estimates of SARS-CoV-2 Omicron BA.2 Subvariant Severity in New England. JAMA Network Open, 5(10), e2238354.
    10.1001/jamanetworkopen.2022.38354
  • Greifer, N., & Stuart, E. A. (2021). Choosing the Causal Estimand for Propensity Score Analysis of Observational Studies. arXiv.
    10.48550/arXiv.2106.10577
  • Greifer, N., & Stuart, E. A. (2021). Matching Methods for Confounder Adjustment: An Addition to the Epidemiologist's Toolbox. Epidemiologic Reviews, 43(1), 118–129.
    10.1093/epirev/mxab003
  • Pishgar, F., Greifer, N., Leyrat, C., & Stuart, E. (2021). MatchThem:: Matching and Weighting after Multiple Imputation. The R Journal, 13(2), 228.
    10.32614/RJ-2021-073
  • Yan, M., Sigurdson, S., Greifer, N., Kennedy, T. A. C., Toh, T. S., Lindsay, P. E., Weiss, J., Hueniken, K., Yeung, C., Sugumar, V., Sun, A., Bezjak, A., Cho, B. C. J., Raman, S., Hope, A. J., Giuliani, M. E., Stuart, E. A., Owen, T., Ashworth, A., ... Lok, B. H. (2021). A Comparison of Hypofractionated and Twice-Daily Thoracic Irradiation in Limited-Stage Small-Cell Lung Cancer: An Overlap-Weighted Analysis. Cancers, 13(12), 2895.
    10.3390/cancers13122895
  • Greifer, N. (2020). Estimating Balancing Weights for Continuous Treatments Using Constrained Optimization [The University of North Carolina at Chapel Hill University Libraries].
    10.17615/DYSS-B342
  • Greifer, N. (2018). Improving Methods for Propensity Score Analysis with Mis-Measured Variables by Incorporating Background Variables with Moderated Nonlinear Factor Analysis [The University of North Carolina at Chapel Hill University Libraries].
    10.17615/4gt1-9h64
  • Kainz, K., Greifer, N., Givens, A., Swietek, K., Lombardi, B. M., Zietz, S., & Kohn, J. L. (2017). Improving Causal Inference: Recommendations for Covariate Selection and Balance in Propensity Score Methods. Journal of the Society for Social Work and Research, 8(2), 279–303.
    10.1086/691464
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