dat.higgins02 {heterometa}

Example data

Description

The package contains the following dataset: higgins02.

Usage

data(dat.higgins02)

Format

A data frame with 5 observations (meta-analyses) on 13 variables:

Q

Values of the heterogeneity \(\chi^2\)

trials

The number of studies in each meta-analysis

tau2

The value of \(\tau^2\)

pval

The associated p-value

H

The value of H

Hlo

Lower limit of the interval for H

Hhi

Upper limit of the interval for H

R

The value of R

Rlo

Lower limit of the interval for R

Rhi

Upper limit of the interval for R

I2

The value of \(I^2\)

I2lo

Lower limit of the interval for \(I^2\)

I2hi

Upper limit of the interval for \(I^2\)

Note

These are values from Higgins and Thompson (2002). They are provided here for testing the package. The row names of the data frame are labels for the topic of the meta-analysis: Albumin, AdjuvantChemo, Sclerotherapy, CDPCholine, GammaNail. The value for \(I^2\) for AdjuvantChemo is as given in the article but is almost certainly a typo for 29 not 20.

Not all the variables are used in this package but are here for reference or possible use elsewhere.

Author(s)

Michael Dewey

References

Higgins JPT, Thompson SG (2002). “Quantifying heterogeneity in a meta–analysis.” Statistics in Medicine, 21, 1539–1558. doi:10.1002/sim.1186.

Examples

data(dat.higgins02)