Code for: Rhew et al. (2026). The use of inverse probability weighting to estimate treatment effects on the non-zero count portion of a zero-inflated count outcome

Description

The repository contains R code used for the manuscript: Rhew, I.C., Huh, D., Zheng, C., Zhou, Z., Mun, E.-Y. (2026). The use of inverse probability weighting to estimate treatment effects on the non-zero count portion of a zero-inflated count outcome [Manuscript submitted for publication].

Steps to reproduce

1. Download the following files: "IPW for zero-inflated count paper code.R" (annotated R code) and "IPW-CR paper data.Rdata" (R data file). 2. Modify the location of the data file "IPW-CR paper data.RData" referenced in the R code to the location on your system. 3. Run "IPW for zero-inflated count paper code.R"" in R to replicate analyses, including the truncated Poisson models with weights applied, described in Rhew et al. (under review).

Institutions

• University of Washington

  Washington, Seattle
• University of Nebraska Medical Center

  Nebraska, Omaha
• University of North Texas Health Science Center

  Texas, Fort Worth

Categories

Funders

• National Institute of Allergy and Infectious Diseases

  National Institutes of Health

  Maryland, Bethesda

  Grant ID: R21AI179404
• National Institute on Alcohol Abuse and Alcoholism

  National Institutes of Health

  Maryland, Bethesda

  Grant ID: K02AA028630
• National Institute on Alcohol Abuse and Alcoholism

  National Institutes of Health

  Maryland, Bethesda

  Grant ID: R01AA01951
• National Institute on Drug Abuse

  National Institutes of Health

  Maryland, Bethesda

  Grant ID: R25DA061742

Licence