I want to explore the impact of two variables on survival and their relationship. Let's say there are two "Disease Scales", A and B, each can have a number from 1 to 10. I want to know if a patient with A = 5 and B = 2 has a worse prognosis than a patient with A = 5 and B = 8. I have the prognostic data (TimeToDeath and Death)
I did some regression models including GLM and Cox controlling for the two variables but I am not sure this is the correct way to address this question. and even if it is I am not sure how to graphically represent it.