All Questions
3 questions
2
votes
2
answers
110
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What does it mean when a variable is significant as a binary variable but not as an ordinal variable?
Let's say I am running Cox proportional regression model for a variable with 4 levels (strongly agree, agree, disagree, strongly disagree). When I code it as an ordinal variable with these 4 ...
- 51
2
votes
0
answers
214
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How to interpret insignificance of time-varying coefficient and main effect
I have a survival-time dataset where entities (countries) are measured at discrete intervals (years). I'm interested in examining the effect of some fixed treatments (i.e. ones that occur at the ...
- 143
0
votes
1
answer
504
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If the fitted hazard ratio from a Cox model is approximately 1, does that mean the covariate is not significant?
Does a hazard ratio nearly 1 indicate that the covariate's effect on survival time is 0? If so would the corresponding p-value routinely indicate statistical insignificance? In other words, can a ...
- 285