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st: ROC-curves

From   Ragnhild Bergene Skråstad <>
To   "" <>
Subject   st: ROC-curves
Date   Mon, 14 Oct 2013 16:54:50 +0000

I investigate how diffrent tests, in combination, can predict a given outcome.

I have made a logistic model with the command "logistic" and plotted the ROC-curve with the command "lroc". This cave me the ROC-curve and the AUC. I wonder:
- how can I get the 95 % CI for this AUC?
- I would like to get the sensitivity at a given fixed false-positive rate. Do I have to get all the coordinates on the ROC curve and identify the one at the FPR at interest- and if so, how do I do that, or is it a direct way to do this?
best wishes 
Ragnhild B Skråstad 

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