prLogistic: Estimation of Prevalence Ratios via Logistic Regression Models
Estimates adjusted prevalence ratios (PR) and their confidence intervals from logistic regression models, addressing the well-known limitation of odds ratios (OR) as approximations to PR in cross-sectional studies with common outcomes. Supports independent observations (glm()), clustered/multilevel data (glmer() from 'lme4'), longitudinal data via Generalised Estimating Equations (geeglm() from 'geepack'), and complex survey designs (svyglm() from 'survey'). Inference is available via the delta method (conditional and marginal standardisation) and via bootstrap (normal-approximation and percentile intervals). Continuous covariates are handled through user-specified or median-based reference values; flexible baseline specification allows any reference category to be chosen for factor predictors. Based on the methodology described in Amorim & Ospina (2021) <doi:10.1590/0001-3765202120190316>.
| Version: | 2.0.2 |
| Depends: | R (≥ 4.1.0) |
| Imports: | boot, lme4, stats, graphics |
| Suggests: | geepack, survey, MASS, testthat (≥ 3.0.0), knitr, rmarkdown, ggplot2, dplyr |
| Published: | 2026-06-19 |
| DOI: | 10.32614/CRAN.package.prLogistic |
| Author: | Raydonal Ospina 
[aut, cre],
Leila D. Amorim
[aut] |
| Maintainer: | Raydonal Ospina <raydonal at de.ufpe.br> |
| BugReports: | https://github.com/Raydonal/prLogistic/issues |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| URL: | https://github.com/Raydonal/prLogistic, https://raydonal.github.io/prLogistic/ |
| NeedsCompilation: | no |
| Citation: | prLogistic citation info |
| Materials: | README, NEWS |
| CRAN checks: | prLogistic results |
Documentation:
| Reference manual: | prLogistic.html , prLogistic.pdf |
| Vignettes: |
Reproducing the Examples from Amorim & Ospina (2021) (source, R code) Estimating Prevalence Ratios with prLogistic (source, R code) |
Downloads:
| Package source: | prLogistic_2.0.2.tar.gz |
| Windows binaries: | r-devel: not available, r-release: not available, r-oldrel: not available |
| macOS binaries: | r-release (arm64): prLogistic_2.0.2.tgz, r-oldrel (arm64): prLogistic_2.0.2.tgz, r-release (x86_64): prLogistic_2.0.2.tgz, r-oldrel (x86_64): not available |
| Old sources: | prLogistic archive |
Linking:
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