ROC curves - an appropriate use?
I am new to ROC curves. My only experience is using them to examine tests for a specific disease, however I wonder if my plans below are an acceptable use for ROC curves..
My data is as such:
Days on dialysis (kidney replacement) (days; and categorised into zero, <1 week of dialysis, >1 week dialysis)
Survival greater than 1 year (yes/no)
I'd be very grateful if someone can advise whether my scenario is compatible with a ROC curve.
Many thanks, David
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