Dear friends,
I have been hearing about Aalen's additive regression for event history
analysis for years, but never actually used it or looked into it in detail.
It was proposed by the author in his articles of 1989 (A linear regression
model for the analysis of life times. Statistics in Medicine, 8:907-925) and
1993 (Further results on the non-parametric linear regression model in
survival analysis. Statistics in Medicine 12:1569-1588). There is a freeware
beta package to apply it with S-Plus and R developed by Aalen and others at
the University of Oslo (see
http://www.med.uio.no/imb/stat/addreg/). My
questions are:
1. May somebody succinctly explain what are the differences and the
advantages/disadvantages of this approach relative to Cox regression (with
or without time-dependent covariates)?
2. Can this Aalen method be implemented in SPSS without too much programming
effort? Or has it been already implemented?
Thanks in advance.
Hector
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