[R] methods for interval-censored data
rossini at blindglobe.net
Tue Sep 19 18:00:37 CEST 2000
>>>>> "EP" == Emmanuel Paradis <paradis at isem.univ-montp2.fr> writes:
EP> Dear all, Are there functions or packages in R that can handle
EP> interval-censored data? I have looked in various packages
EP> (such as survival5 or event), but it seems that only
EP> right-censored data can be analysed.
What do you want to do? 1-sample? regression models? hypothesis
testing? This isn't clear.
Also, what assumptions are you referring to? Continuous examination
process, or discrete examination process?
There aren't clear choices for fitting -- for the semiparametric
regression models, the properties of the many approaches for variance
estimation for regression parameters aren't well understood.
For parameteric models, Jim gave the answer and has a paper detailing
the characteristics of the approaches (Jim - did you ever publish
EP> More generally, are there methods to analyse both
EP> interval-censored observations and right-censored observations
EP> in the same data set?
All right censored observations are inherently interval censored, take
the interval (C,\infty).
A.J. Rossini Rsrch. Asst. Prof. of Biostatistics
BlindGlobe Networks (home/default) rossini at blindglobe.net
UW Biostat/Center for AIDS Research rossini at u.washington.edu
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