I would like to know if performing surgery or not is a benefit for a patient.
For that, I have a database with baseline characteristics of patients, surgery (and time to surgery) or not and outcome (death).
I would like to calculate prediction of deaths depending on the characteristics of the patient and the fact that the patient undergoes or not a surgery.
It will be an help for the clinical team to take a decision.
I am thinking about an extended Cox model with surgery as time-dependent variable and with significant baseline characteristics included in the model.
I found a paper dated on 2005:
"Predictive survival model with time-dependent prognosis factors: development of computer-aided SAS macro program".
Did someone use it?
Do you think that it will answer to my question?
