All Questions
6 questions with no upvoted or accepted answers
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Interpreting interactions in Cox Proportional Hazard models
I am currently doing an interactions paper with cox models to assess time to criminal recidivism as an outcome, but am struggling with the interpretations.
My two variables that are part of the ...
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1
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1
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160
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How do I interpret the interaction coefficients in a cox proportional hazards model with two factors?
I am trying to look at how two different factors A (levels A1, A2, A3, A4) and B (levels B1 and B2), as well as the interaction between the two, influence the time to an event X. As a result I am ...
- 461
1
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190
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Survival analysis interaction interpretation: interaction is insignificant, but pairwise comparison does hold significance
I'm new with survival analyses, and have been breaking my head over this for a while, so I hope someone can explain this in a simple manner:
Variable
HR
Gender(Female)
1.391*
Treat (Yes)
0.544***
...
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1
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317
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Cox survival PH violated variable is part of an interaction
One of my main predictors violates the PH assumption. I've been reading different ways to deal with this for a while and have decided on an interaction with time after making a person-period file (...
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107
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Interpreting a hazard ratio for time-dependent coefficients
I have a cox model with two main effects (x,y) and two interaction terms (xt, yt) where t is time. I am having some trouble interpreting the hazard ratios. Does the hazard ration become more of an ...
- 113
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33
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Statistical design: retrospective analysis of effectiveness of medication
I have a retrospective dataset that has records of the medications a patient was administered to prevent recurrence of heart attack. The goal is to determine if a particular drug or combination of ...
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