metadat (version 1.4-0)

dat.woods2010: Studies on Treatments for Chronic Obstructive Pulmonary Disease

Description

Results from 3 trials examining the mortality risk of three treatments and placebo in patients with chronic obstructive pulmonary disease.

Usage

dat.woods2010

Format

The data frame contains the following columns:

author	character	first author / study name
treatment	character	treatment
r	integer	number of deaths
N	integer	number of patients

Author

Guido Schwarzer, , https://github.com/guido-s/

Concepts

medicine, odds ratios, network meta-analysis

Details

Count mortality statistics in randomised controlled trials of treatments for chronic obstructive pulmonary disease (Woods et al., 2010, Table 1).

Examples

### Show full dataset
dat.woods2010

if (FALSE) {
### Load netmeta package
suppressPackageStartupMessages(library("netmeta"))

### Print odds ratios and confidence limits with two digits
oldset <- settings.meta(digits = 2)

### Change appearance of confidence intervals
cilayout("(", "-")

### Transform data from long arm-based format to contrast-based
### format. Argument 'sm' has to be used for odds ratio as summary
### measure; by default the risk ratio is used in the metabin function
### called internally.
pw <- pairwise(treatment, event = r, n = N,
  studlab = author, data = dat.woods2010, sm = "OR")
pw

### Conduct network meta-analysis
net <- netmeta(pw)
net

### Show forest plot
forest(net, ref = "Placebo", drop = TRUE,
  leftlabs = "Contrast to Placebo")

### Use previous settings
settings.meta(oldset)
}