Hi, I'm using stepAIC with a CoxPH model on some data. As we expect, there are a bunch of predictors, and stepAIC throws some out and then converges on others. Anyway, when I run cox.zph on the final model, I get some evidence of Beta(t) time dependence. Should I be concerned about the impact of this on the entire fit procedure, or is it just that I can't trust the final hazard ratio that the Cox model spits out? Thanks in advance, -Ekr