VEwaning: Vaccine Efficacy Over Time

Implements methods for inference on potential waning of vaccine efficacy and for estimation of vaccine efficacy at a user-specified time after vaccination based on data from a randomized, double-blind, placebo-controlled vaccine trial in which participants may be unblinded and placebo subjects may be crossed over to the study vaccine. The methods also allow adjustment for possible confounding via inverse probability weighting through specification of models for the trial entry process, unblinding mechanisms, and the probability an unblinded placebo participant accepts study vaccine: Tsiatis, A. A. and Davidian, M. (2021) <doi:10.48550/arXiv.2102.13103> .

Version: 1.3
Depends: R (≥ 2.10), survival, stats, graphics, ggplot2
Published: 2023-12-13
DOI: 10.32614/CRAN.package.VEwaning
Author: Marie Davidian [aut], A.A. Tsiatis [aut], Shannon T. Holloway [aut, cre]
Maintainer: Shannon T. Holloway <shannon.t.holloway at>
License: GPL-2
NeedsCompilation: no
Materials: NEWS
CRAN checks: VEwaning results


Reference manual: VEwaning.pdf


Package source: VEwaning_1.3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): VEwaning_1.3.tgz, r-oldrel (arm64): VEwaning_1.3.tgz, r-release (x86_64): VEwaning_1.3.tgz, r-oldrel (x86_64): VEwaning_1.3.tgz
Old sources: VEwaning archive


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