Aalen's Additive Regression Model
Published Online: 15 JUL 2005
Copyright © 2005 John Wiley & Sons, Ltd
Encyclopedia of Biostatistics
How to Cite
Aalen, O. O. and Scheike, T. H. 2005. Aalen's Additive Regression Model. Encyclopedia of Biostatistics.
- Published Online: 15 JUL 2005
In survival analysis, the well-known Cox regression is based on modeling the hazard rate. This method assumes a proportional hazard structure. Aalen's additive model, however, assumes a linear parametric structure on the hazard rate. This approach may be justified within counting process theory, and produces martingale type estimates. These are used for plotting purposes and shows time-varying effects of covariates on survival. The plots are easy to compute and have a well-developed statistical theory. There exist several software packages for carrying out the analysis.
- survival analysis;
- hazard rate;
- counting process;
- regression model;