Title: Does The Selection of Covariates in The Cox Regression Model Matter
Abstract: Cox proportional regression model (CPHRM) has been famaous as a method for clinical data analysis. However, its controversien is still discussed by those who found of accelerated life in dealing with survival analysis. Here, the question is proposed and opened to the reader, whether the determination of covariates in the CPHRM be reviewed again? Especially covariates 0 and 1 which cox used it to his spectacular CPHRM for two-sample. Keywords : propotional hazards, covariates, score vector, sample information matrix, maximum-likelihood, patial likelihood, parameter estimate, newton-raphson.
Publication Year: 1997
Publication Date: 1997-01-01
Language: en
Type: article
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