American Statistical Association
New York City
Metropolitan Area Chapter

Memorial Sloan-Kettering Cancer Center
Biostatistics Seminar


Mithat Gönen, Ph.D.
Associate Attending Biostatistician
Department of Human Genetics
Memorial Sloan-Kettering Cancer Center

NONPARAMETRIC ESTIMATION
OF CONCORDANCE PROBABILITY WITH CENSORED DATA

Concordance probability is commonly used to quantify the predictive accuracy of a marker. Estimators of concordance probability are well studied for binary outcomes but their extensions to censored data have been problematic. In this talk, we will propose an estimator based on the Kaplan-Meier estimate of the survival function and explore its properties. Colorectal cancer staging will be used as an example for illustration.

This is joint work with Glenn Heller and Quincy Mo.


Date: Wednesday, October 10, 2007
Time: 4:00 P.M. - 5:00 P.M.
Location: Memorial Sloan-Kettering Cancer Center
Department of Epidemiology and Biostatistics
307 East 63rd Street
(between First and Second Avenues)
3rd Floor Conference Room
New York, New York
Note: To gain access to the building, please follow the directions by the telephone in the foyer.

RESERVATIONS ARE NOT REQUIRED


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