Example meta-analysis data

Made-up studies from a meta-analysis of an intervention: each study's standardised mean difference and sampling variance (the yi/vi pair that metafor::escalc() produces), its sample size, and four study properties. Some studies don't report their outcome measure or country (NA). Use it to try out plot_forestmap().

Usage

forestmap_example

Format

A data frame with 60 rows (studies) and 8 columns:

study

Study label (first author and year).

smd

Standardised mean difference (Hedges' g).

vi

Sampling variance of smd.

n

Total sample size.

population

Factor: Adults, Children or Clinical.

outcome

Factor: Self-report or Behavioural; NA = not reported.

design

Factor: RCT or Quasi-experimental.

country

Factor: USA, UK, Australia, Germany or Canada; NA = not reported.

Source

Simulated; see data-raw/forestmap_example.R in the package source.