Table 2.

C-indexes of the Radscore and Radscore-based models.

	C-index	95%CI
Radscore k trans	0.693	0.560~0.826
Radscore Ve	0.614	0.481~0.746
Radscore k trans +Ve	0.703	0.571~0.836
Radscore k trans -clinical	0.725	0.592~0.857
Radscore Ve −Clinical	0.689	0.548~0.813
Radscore k trans +Ve -clinical	0.732	0.599~0.864

C-index, index of probability of concordance; CI, confidence interval.