R/AIDS.R

In rennertl/SurvTrunc: Analysis of Doubly Truncated Data

#' AIDS blood transfusion data
#'
#' Data collected by CDC data registry. Adults infected with virus from contaminated blood
#' transfusion in April 1978. Event time is the induction time from HIV
#' infection to AIDS. Infection time is time from blood transfusion to HIV infection.
#' Data left truncated because only subjects who develop AIDS after 1982 are unobserved (as HIV
#' unknown before 1982). Data also right truncated because cases reported after July 1, 1986
#' are not included in the sample to avoid inconsistent data and bias from reporting delay.
#'
#'
#' @docType data
#'
#' @usage data(AIDS)
#'
#' @format This data frame contains the following columns:
#'\describe{
#' \item{Induction.time}{Months between HIV infection and development of AIDS (event time of interest)}
#' \item{Adult}{Indicator of adult (1=adult,0=child)}
#' \item{Infection.time}{Months from blood transfusion date (Apr 1,1978) to HIV infection}
#' \item{L.time}{Left truncation time: 45 - infection time}
#' \item{R.time}{Right truncation time: Left truncation time + 54 months}
#' \item{status}{Indicator of event occurrence, which is set to 1 since all subjects experience the event}
#'}
#' @keywords datasets
#'
#' @source
#' Klein and Moeschberger (1997) Survival Analysis Techniques for Censored and truncated data, Springer.
#'
#' Lagakos et al. Biometrika 68 (1981): 515-523.
#'
#' @examples
#' data(AIDS)
"AIDS"