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. 2015 Feb 27;10(2):e0117658. doi: 10.1371/journal.pone.0117658

Table 3. Comparison of the Cox concordance index results and RSF concordance index results for each type of data.

Year Clinical_Only Clinical_PAM Clinical_Gene
Cox RSF Cox RSF Cox RSF
5 0.709 0.714 0.713 0.721 0.703 (30) 0.720 (150)
10 0.718 0.723 0.720 0.724 0.719 (30) 0.731 (50)
15 0.694 .0692 0.698 0.705 0.696 (30) 0.706 (100)

For Clinical_Gene these are the best results obtained by the model. They were all obtained with Method 2. The number in parenthesis shows the number of features obtained from ReliefF that yielded the best results. Other than the Year 15 entry for Clinical_Only, the comparison of the Cox results and RSF results is significant at p < 2.2 × 10–16.