metadat (version 1.4-0)

dat.damico2009: Studies on Topical plus Systemic Antibiotics to Prevent Respiratory Tract Infections

Description

Results from 16 studies examining the effectiveness of topical plus systemic antibiotics to prevent respiratory tract infections (RTIs).

Usage

dat.damico2009

Format

The data frame contains the following columns:

study	character	first author
year	numeric	publication year
xt	numeric	number of RTIs in the treatment group
nt	numeric	number of patients in the treatment group
xc	numeric	number of RTIs in the control group
nc	numeric	number of patients in the control group
conceal	numeric	allocation concealment (0 = not adequate, 1 = adequate)
blind	numeric	blinding (0 = open, 1 = double-blind)

Author

Wolfgang Viechtbauer, , https://www.metafor-project.org

Concepts

medicine, odds ratios

Details

The dataset includes the results from 16 studies that examined the effectiveness of topical plus systemic antibiotics versus no prophylaxis to prevent respiratory tract infections (RTIs).

Examples

### copy data into 'dat' and examine data
dat <- dat.damico2009
dat

if (FALSE) {
### load metafor package
library(metafor)

### meta-analysis of the (log) odds ratios using the Mantel-Haenszel method
rma.mh(measure="OR", ai=xt, n1i=nt, ci=xc, n2i=nc, data=dat, digits=2)

### calculate log odds ratios and corresponding sampling variances
dat <- escalc(measure="OR", ai=xt, n1i=nt, ci=xc, n2i=nc, data=dat)

### meta-analysis using a random-effects model
res <- rma(yi, vi, data=dat, method="DL")
res
predict(res, transf=exp, digits=2)
}