# Schoenfeld residuals

In a Cox proportional hazards model with many variables, if the Schoenfeld residuals are not flat for one of the variables, does this invalidate the entire model or can just the poorly-performing variable be ignored? That is, interpret the coefficients for the other variables, but do not interpret the resulting coefficients for the poorly-performing variable.

There are several standard ways of dealing with a model where the Schoenfeld residuals aren't flat. Assume for the moment that we can't do them.

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One time bump. Not sure if that's within the etiquette of this site. –  jeffalstott Aug 15 '12 at 12:46