Fits Cox regression based on retrospectively ascertained times-to-event. The method uses Inverse-Probability-Weighting estimating equations.
The coxrt
package fits Cox regression based on retrospectively ascertained time-to-event
data. The method uses Inverse-Probability-Weighting (IPW) estimating equations with stabilized weights as described
in Vakulenko-Lagun, Mandel, and Betensky,
Inverse-Probability-Weighting Methods for Cox Regression with Right Truncated Data (submitted to Biometrics, 2018).
The coxrt
package provides two functions: coxph.RT
that assumes positivity and
coxph.RT.a0
that allows for adjustment of estimation under violation of positivity.
The coxrt
package can be installed by
devtools::install_github("Bella2001/coxrt")
The examples of when and how to use coxrt
package are here.