## A simulation study of predictive ability measures in a survival model II: explained randomness and predictive accuracy.

- B Choodari-Oskooei, P Royston, Mahesh K B Parmar
- Statistics in medicine
- 2012

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@inproceedings{Brentnall2018UseOT, title={Use of the concordance index for predictors of censored survival data}, author={Adam R. Brentnall and Jack Cuzick}, booktitle={Statistical methods in medical research}, year={2018} }

- Published 2018 in Statistical methods in medical research
DOI:10.1177/0962280216680245

The concordance index is often used to measure how well a biomarker predicts the time to an event. Estimators of the concordance index for predictors of right-censored data are reviewed, including those based on censored pairs, inverse probability weighting and a proportional-hazards model. Predictive and prognostic biomarkers often lose strength with time, and in this case the aforementioned statistics depend on the length of follow up. A semi-parametric estimator of the concordance index is… CONTINUE READING

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