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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: J Am Stat Assoc. 2011 Dec 6;107(497):331–340. doi: 10.1080/01621459.2011.637468

Table 5.

C-index error

Prediction error based on 500 simulations
Settings Cox RSF0 RSF1 RF RIST1 RIST3 RIST5 Original Scale
1 1.002 1.015 1 1.030 1.008 1.007 1.007 0.305
2 1.079 1 1.007 1.056 1.017 1.017 1.018 0.439
3 1.405 1.010 1.006 1.124 1.001 1.000 1 0.356
4 1.273 1 1.000 1.041 1.006 1.004 1.005 0.393
5 1 1.059 1.027 1.074 1.037 1.036 1.037 0.291

RSF0 and RSF1 are Random Survival Forests using logrank and random logrank splitting rules respectively. RIST1, RIST3, and RIST5 are 1-fold, 3-fold, and 5-fold RIST respectively.