# metamedian: Meta-Analysis of Medians

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:

- Hozo et al. (2005)
- Wan et al. (2014)
- Bland (2015)
- Luo et al. (2018)
- Shi et al. (2020a)
- Shi et al. (2020b)
- McGrath et al. (2020b)
- Cai et al. (2021)
- Yang et al. (2022)
- McGrath et al. (2023)
- Shi et al. (2023)

## 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")`