Package index • gtregression

Descriptive & Compatibility Tools

Summarise and check data compatibility

descriptive_table(): Descriptive Summary Table for Study Characteristics (User-Friendly)

dissect(): Dissect a Dataset Before Regression

Regression Functions

Fit univariate and multivariable models

uni_reg(): Univariate regression (Odds, Risk, or Rate Ratios)

multi_reg(): Multivariable Regression (Adjusted Odds, Risk, or Rate Ratios)

Regression Functions by stratifier

Fit univariate and multivariable models by stratifier

stratified_uni_reg(): Performs univariate regression for each exposure on a binary, count, or continuous outcome, stratified by a specified variable. Produces a stacked `gtsummary` table with one column per stratum, along with underlying models and diagnostics.

stratified_multi_reg(): Stratified Multivariable Regression (Adjusted OR, RR, IRR, or Beta)

Model Selection & Diagnostics

Model selection, collinearity, and convergence tools

select_models(): Stepwise Model Selection with Evaluation Metrics

check_collinearity(): Check Collinearity Using VIF for Fitted Models

check_convergence(): Check Convergence for a Regression Model

Confounding & Interaction

Identify confounders and effect modifiers

identify_confounder(): Identify Confounders Using the Change-in-Estimate Method

interaction_models(): Compare Models With and Without Interaction Term

Tables & Customization

Customize regression output tables

modify_table(): Modify Regression Table Labels and Layout

save_table(): Save a Single Regression Table

save_docx(): Save Multiple Tables and Plots to a Word Document

merge_tables(): Merge Multiple gtsummary Tables (Descriptive, Univariate, Multivariable)

Plotting

Forest plots of regression models

plot_reg(): Visualize a Regression Model as a Forest Plot

plot_reg_combine(): Side-by-Side Forest Plots: Univariate vs Multivariable

save_plot(): Save a Single Plot

Example Datasets

Built-in datasets for demo and testing

data_PimaIndiansDiabetes: PimaIndians2 Diabetes Dataset

data_gt_quin: Student Absenteeism in Rural Schools

data_birthwt: Birth Weight Data

data_epilepsy: Epilepsy Treatment and Seizure Counts

data_infertility: Infertility Matched Case-Control Study

data_lungcancer: Lung Cancer Trial Data