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st: RE: Time dependent ROC

From   "Martin Weiss" <>
To   <>
Subject   st: RE: Time dependent ROC
Date   Sun, 6 Jun 2010 11:50:31 +0200


Have you taken a look at the two articles by Pepe et al. in Sj 9 (1) and accompanying software -net from


-----Original Message-----
[] On Behalf Of sumit isharwal
Sent: Sonntag, 6. Juni 2010 05:31
Subject: st: Time dependent ROC

Hello All:

I am looking for code/macro for time dependent ROC curve (Patrick J.
Heagerty,Thomas Lumley, and Margaret S. Pepe: Time-Dependent ROC
Curves for Censored Survival Data and a Diagnostic Marker.  BIOMETRICS
56, 337-344;2000) in Stata . Till now i have used only c-index to
report accuracy of a biomarker (not sensitivity, specificity, ROC
curve of a biomarker in time dependent censored data set). I would be
obliged if someone have codes/macro to calculate time dependent ROC
curve, sensitivity, specificity of a biomarker in censored data set.

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