Source: DeLong ER, DeLong DM, Clarke-Pearson DL. Comparing the areas under two or more correlated receiver operating characteristic curves: A nonparametric approach. Biometrics 1988; 44: 837–845. doi: 10.2307/2531595
The K-G score has been reverse coded so that higher scores are associated with better prognosis, consistent with the direction of TP and ALB.
Data are from 3 prognostic indices for 49 ovarian cancer patients undergoing surgery for bowel obstruction.