Fig. 2

Receiver operating characteristic (ROC) curves of frailty measures for identifying ECOG PS 3 or more (N = 92). In this figure, KG-7 was recorded as reverse to achieve the same direction scores. The participants assigned to CFS-K scale 9 (terminally ill) were excluded in this analysis. ^†P values were obtained to compare the ROC curves, and Bonferroni’s correction was used to adjust for multiple comparisons