Thank you for your answer but the two dosuments present non parametric comparison of several correlated Roc Curves. This kind of test is appliable for exemple when different diagnostic tests are performed on the same individuals.
In my case the Roc curves i need to compare are not correlated, i have one diagnostic test performed on different populations, that's why it's a little bit more complicated...
I have tried using the %ROC SAS Macro to generate areas under the curve. I am getting areas under the curves that differ from the c-statistic generated by proc logistic. Is this expected? From some of the examples I have seen from SAS papers on ROC curves, the c-stat is equivalent to the area under the curve generated by the ROC macro.
I am new to ROC curve-related analysis so I would appreciate your input.