A meta-analysis on the efficacy of BCG vaccination against tuberculosis (TB).
Usage
data("BCG")
Format
A data frame with 13 observations on the following 7 variables.
Study
an identifier of the study.
BCGTB
the number of subjects suffering from TB after a BCG
vaccination.
BCGVacc
the number of subjects with BCG vaccination.
NoVaccTB
the number of subjects suffering from TB without
BCG vaccination.
NoVacc
the total number of subjects without BCG
vaccination.
Latitude
geographic position of the place the study was
undertaken.
Year
the year the study was undertaken.
Details
Bacille Calmette Guerin (BCG) is the most widely used vaccination
in the world. Developed in the 1930s and made of a live, weakened
strain of Mycobacterium bovis, the BCG is the only vaccination
available against tuberculosis today. Colditz et al. (1994)
report data from 13 clinical trials of BCG vaccine each investigating
its efficacy in the treatment of tuberculosis. The number of subjects
suffering from TB with or without BCG vaccination are
given here.
In addition, the data contains the values of two other
variables for each study, namely, the geographic latitude of
the place where the study was undertaken and the year of publication.
These two variables will be used to investigate and perhaps explain
any heterogeneity among the studies.
Source
G. A. Colditz, T. F. Brewer, C. S. Berkey, M. E. Wilson,
E. Burdick, H. V. Fineberg and F. Mosteller (1994),
Efficacy of BCG vaccine in the prevention of tuberculosis.
Meta-analysis of the published literature.
Journal of the American Medical Association, 271(2),
698–702.
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
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> library(HSAUR)
Loading required package: tools
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/HSAUR/BCG.Rd_%03d_medium.png", width=480, height=480)
> ### Name: BCG
> ### Title: BCG Vaccine Data
> ### Aliases: BCG
> ### Keywords: datasets
>
> ### ** Examples
>
>
> data("BCG", package = "HSAUR")
> boxplot(BCG$BCGTB/BCG$BCGVacc, BCG$NoVaccTB/BCG$NoVacc,
+ names = c("BCG Vaccination", "No Vaccination"),
+ ylab = "Percent BCG cases")
>
>
>
>
>
>
> dev.off()
null device
1
>