trtools: Miscellaneous Tools for Teaching Statistics

#' Meta-analysis of treatments to prevent bleeding from cirrhosis. 
#'
#' The data include the results from several clinical trials that examined one or two methods of preventing bleeding from cirrhosis. 
#'
#' @format A data frame with 54 observations and four variables.
#' \describe{
#'    \item{study:}{integer identifier for the study}
#'    \item{treatment:}{treatment condition (beta-blockers, sclerotherapy, or control group)}
#'    \item{bleeding:}{number of patients that showed bleeding}
#'    \item{total:}{total number of patients}
#' }
#'
#' @note These data are originally from Pagliaro et al. (1992) and are also featured in Collett (2003).
#'
#' @source Pagliaro, L. et al. (1992). Prevention of first bleeding in cirrhosis: a meta-analysis of randomised trials of nonsurgical treatment. \emph{Annals of Internal Medicine}, \emph{117}, 59-70.
#' 
#' Collett, D. (2003). \emph{Modelling binary data} (2nd Edition). Boca Raton: Chapman & Hall/CRC. 
"cirrhosis"