A SAS macro for estimation of direct adjusted survival curves based on a stratified Cox regression model

@article{Zhang2007ASM,
  title={A SAS macro for estimation of direct adjusted survival curves based on a stratified Cox regression model},
  author={Xu Zhang and Fausto R. Loberiza and John P. Klein and Mei-Jie Zhang},
  journal={Computer methods and programs in biomedicine},
  year={2007},
  volume={88 2},
  pages={95-101}
}
Often in biomedical research the aim of a study is to compare the outcomes of several treatment arms while adjusting for multiple clinical prognostic factors. In this paper we focus on computation of the direct adjusted survival curves for different treatment groups based on an unstratified or a stratified Cox model. The estimators are constructed by taking the average of the individual predicted survival curves. The method of direct adjustment controls for possible confounders due to an… CONTINUE READING
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