Logistic regression: adjust numerical variables by subtracting sample mean before coefficients calculation?
I intend to develop a survival prediction model for outcome following major trauma.Dependent variable: survival vs. death 30 days after injury. Independent variables: age (numeric), anatomical injury (numeric), physiological derangement on admission (numeric), and pre-injury comorbidity (categorical).In a recent publication I have read the following statement: "For numerical variables, the statist...
