Hello,

I'm trying to estimate a Cox's survival model with a random effect, so I have added the instruction frailty.gaussian (name variable) in the model. 

My frailty variable is a qualitative variable with four types of answer. 

In the resulting output there are the parameter estimates of all the variables, but there are also four estimates for each type of answer of the frailty variable. Which kind of estimates are they? Maybe hazard ratio? But which is the reference?

Thanks a lot

Emanuela
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