Cox regression analysis for distorted covariates with an unknown distortion function

  title={Cox regression analysis for distorted covariates with an unknown distortion function},
  author={Yanyan Liu and Yuanshan Wu and Jing Zhang and Haibo Zhou},
  journal={Biometrical Journal},
  pages={968 - 983}
We study inference for censored survival data where some covariates are distorted by some unknown functions of an observable confounding variable in a multiplicative form. An example of this kind of data in medical studies is normalizing some important observed exposure variables by patients' body mass index , weight, or age. Such a phenomenon also appears frequently in environmental studies where an ambient measure is used for normalization and in genomic studies where the library size needs… 

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