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Description

Meta-Analysis of Medians.

Implements several methods to meta-analyze studies that report the sample median of the outcome. When the primary studies are one-group studies, the methods of McGrath et al. (2019) <doi:10.1002/sim.8013> and Ozturk and Balakrishnan (2020) <doi:10.1002/sim.8738> can be applied to estimate the pooled median. In the two-group context, the methods of McGrath et al. (2020a) <doi:10.1002/bimj.201900036> can be applied to estimate the pooled difference of medians across groups. Additionally, a number of methods (e.g., McGrath et al. (2020b) <doi:10.1177/0962280219889080>, Cai et al. (2021) <doi:10.1177/09622802211047348>, and McGrath et al. (2023) <doi:10.1177/09622802221139233>) are implemented to estimate study-specific (difference of) means and their standard errors in order to estimate the pooled (difference of) means. See McGrath et al. (in press) <doi:10.1002/jrsm.1686> for a detailed guide on using the package.

metamedian: Meta-Analysis of Medians

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The metamedian package implements several methods to meta-analyze studies that report the sample median of the outcome. When the primary studies are one-group studies, the methods of McGrath et al. (2019) and Ozturk and Balakrishnan (2020) can be applied to estimate the pooled median. In the two-group context, the methods of McGrath et al. (2020a) can be applied to estimate the pooled difference of medians across groups.

Additionally, this package implements a number of methods to estimate the study-specific means and their standard errors from studies reporting sample medians in order to estimate the pooled (difference of) means. Specifically, one can apply the following methods in this context:

Installation

You can install the released version of metamedian from CRAN with:

install.packages("metamedian")

After installing the devtools package (i.e., calling install.packages(devtools)), the development version of metamedian can be installed from GitHub with:

devtools::install_github("stmcg/metamedian")

Usage

See McGrath et al. (in press) for a detailed guide on using the metamedian package.

Metadata

Version

1.1.1

License

Unknown

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