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Repeated assessment of risk factors in survival analysisStatistical Research Unit, University of Copenhagen Regression models for survival data with time-dependent covariates are considered. We review estimation in the Cox regression model and discuss problems in connection with data requirements for the analysis, with interpretation of results and with prediction based on such a model. In particular, we discuss how the latter problems may be approached within an extended (Markov process) model. A clinical trial in liver cirrhosis is used for illustration.
Statistical Methods in Medical Research, Vol. 1, No. 3,
297-315 (1992) This article has been cited by other articles:
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