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udma2
2012 Apr 10
0
marginal HR in coxph() model with interaction
...LA (both low/high) where I have
divided the continuous variables at a certain level.
I am aware about the contra arguments categorizing a continous variable and
I could as well use the variables continuously.
Just to keep my question simple.
This is the function call and output:
> coxph( ami ~ ADMA2 * ALA2 , data = d2)
Call:
coxph(formula = ami ~ ADMA2 * ALA2, data = d2)
coef exp(coef) se(coef) z p
ADMA2high 1.137 3.118 0.302 3.759 0.00017
ALA2high 0.148 1.160 0.196 0.756 0.45000
ADMA2high:ALA2high...