sas clinical

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    External Validation of Cox Model

    I have two data set (training and validation) for building and validating a Cox model. With the training data set I fitted a cox model using stepwise selection method. The significant variables in the model were the only variables included in the validation model. Is this the right...
  2. S

    Response rate calculation from logistic regression using SAS

    Hi All, I am working on logistic regression. I have a binary response variable (PASI response:yes,no) and three categorical covariates- treatment (treatment A, treatment B), body weight (below 60kg, above or equal to 60kg) and therapy taken (yes, no). I need to calculate the following...