A regression survival model for testing the proportional hazards hypothesis.

@article{Quantin1996ARS,
  title={A regression survival model for testing the proportional hazards hypothesis.},
  author={Catherine Quantin and Thierry Moreau and Bernard Asselain and Jean Maccario and Joseph Lellouch},
  journal={Biometrics},
  year={1996},
  volume={52 3},
  pages={
          874-85
        }
}
A semi-parametric generalization of the proportional hazards regression model is defined, whereby the hazard functions can cross for different values of the covariates. In the two-sample comparison, it includes in particular the case of two Weibull distributions differing in scale and shape parameters. A global test of the proportional hazards assumption is proposed against such defined alternatives. Its power in the two-sample case is compared to that of previously described tests by using… CONTINUE READING

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